Best Foldable Wired Gaming Keyboards in 2026

87 Key Mechanical Gaming Keyboard with Custom Switches for longevity with greater durability and responsiveness offering clicky medium resistance audible loud click sound crisp precise tactile feedback for typing and gaming

LED RGB Backlit Mechanical Gaming Keyboard 18 different RGB lighting modes, 9 different colors, 5 backlight brightness levels, breathing speed. Precision engineered keycaps offering crystal clear uniform backlighting

Anti Ghosting, ALL 87 keys are conflict free n-Key Rollover for ultimate Gaming performance. 12 Multimedia keys, Non-Slip Ergonomic, splash-proof Design with adjustable typing angle, High-Speed USB cable with gold-plated corrosion free USB connector

💝Mini 60% Keyboard: RK61 mini 60% gaming keyboard is a ultra-compact layout with 61 keys makes you a neat desktop with your organized gears on, even folks have nothing to do with Minimalist will dive into its tiny practical design. Tips you might want to know is that keyboard without numpad is most FPS gamers' choice, more spaces left for mouse movements.

🌟Brown Switch: Slightly quieter and easier to trigger than the Blue Switch. Halfway between a typing and a gaming switch.Some people prefer Brown Switch since it enables you to double tap faster and typists like them because they still have a good tactile feedback, but the audio feedback isn't quite as noticeable as Blue Switch.

🌟RK61 RGB Keyboard: This 60% rgb keyboad has 18 RGB backlight modes, 8 monochrome backlight modes and 1 full color backlight. These modes will give you more enjoyable when you gaming or typing at night.

【Full Size Keyboard, Plug and Play with It】104 Keys Full Size Keyboard. Featuring standard keyboard layout with F-keys ( function keys ) and number pad. Floating keycaps are removable and feel good in the hand. The wired keyboard brings you efficient typing while at work or gaming. Plug and play with it, no other driver or software needed.

【Practical & Ergonomic Design】The K1 keyboard is ergonomically designed with a scientific layout of high and low keycaps to fit your hands naturally, bringing maximum comfort and effectively reducing hand fatigue after prolonged use. The light up keyboard has non-slip pads on the bottom to enhance the stability of the keyboard and prevent it from moving back and forth. A great choice for your modern office use or playing games.

【Rainbow LED Backlight】The keyboard has a colorful LED backlight. The double-shot injection moulding process ensures that the letters never fade and have good light transmission. Even if you use the keyboard in the dark, you can see the letters clearly (also can be turned off).

Wired Gaming Keyboard and Mouse - Both keyboard and mouse with RGB lighting effect, 14 backlit modes gaming keyboard and 7 color effect gaming mouse, creates a cool and colorful game atmosphere to enhance the excitement of the game. Best for pc games.

Mechanical Keyboard - With all-Metal Panel and floating keys design, the keys of keyboard trigger sensitively, all 104 keys have individual switches with full n-key rollover

Programmable Mouse - Gaming mice with 6 Dots Per Inch levels available from 800/1600/ 2400/ 3200 / 4000/ 4800, can easily adjust the Dots Per Inch to match the mouse speed instantly for different game scenarios.

IP32 Spill Resistance: With durable construction that repels liquids and dirt for easy cleanup. Capable of withstanding accidental spills. Adjustable feet let you set your keyboard to the ideal position, so it's comfortable to use even during the longest gaming sessions.

Durable Full-Sized Gaming Keyboard: Made with highly-resistant ABS plastic and metal base for longevity, and durability. With a mechanical brown switch gaming feeling that delivers precise tactile feedback and responsiveness.

10-Zone RGB Lighting: With 16.8 million colors and a suite of effects to choose from, press FN+M1~M5 to personalize the keyboard and get access to dynamic lighting effects.

IP32 Spill Resistance: With durable construction that repels liquids and dirt for easy cleanup. Capable of withstanding accidental spills. Adjustable feet let you set your keyboard to the ideal position, so it's comfortable to use even during the longest gaming sessions.

Durable Full-Sized Gaming Keyboard: Made with highly-resistant ABS plastic and metal base for longevity, and durability. With a mechanical brown switch gaming feeling that delivers precise tactile feedback and responsiveness.

RGB Backlighting: 7 single colors RGB Lighting. Gorgeous color schemes and reactive effects. This helps make the illumination of each key more brilliant, making it easier to find your keys in the dark.

【Mini 60% Keyboard】Womier gaming keyboard uses Acrylic material 360º full transparent panel, 61 keys with a space saving, compact design,easy to carry .Compatible with Windows,MacOS,Linus,Xbox,PlayStation.

【 Hot-swappable Red Switches 】Womier K61 mechanical gaming keyboard adopts hot-swapped switches, full keyboard pluggable switch, plug and play. You can change different 3-5-pin mechanical switches according to your own preferences. So it's designed for you who pursue individuality and excellence.

【Programmable Macros White Keyboard】Custom software allows macro recording and key remapping for complex commands and custom functions. Please note the macro software is only available for Windows PC at this time.

【60% Compact Mechanical Keyboard+ Type-C cable USB】Gateron Switch esports level mechanical keyboard switch, Anti Ghosting, ALL 66 keys are conflict free n-Key Rollover for ultimate Gaming performance. Compatible with Windows,Mac OS,Linus,Xbox,Play Station.

【HOT-Swappable Gaming Keyboard-Portable Mini Keyboard】Hot swappable Gateron Switch esports level mechanical switch, to meet the player's hand. Compatible With 3/5 Pin Switch. Compact, portable and easy to use, increase the independent direction key control. Ergonomic design, no feel fatigue after long term use.

【Unique Keyboard Structure & With Lubricating Mechanical Switch】 Unique bottom shell structure which absorbs any pinging noises that might occur when the keys are bottomed out, reduce the empty noise of keyboard every time it hits, the purity of every keystroke is improved, and a very satisfying typing experience is provided. This ergonomic keyboard uses all switches with added lubricant, which makes it feel more comfortable to use and has a better sound.

Fully Modular Keyboard: As the first Hot Swap RGB gaming keyboard, GMMK features hot swap switch sockets so you can plug in and out switches as your DIY preference (Does not support 5 pin switches, you can cut off the plastic legs of the switch to make it compatible). No need to solder for hours. Featuring per key 16.8 million RGB, fully customizable with our GMMK Software, and major RGB patterns can be set from the keyboard hotkeys directly without software.

Preinstalled Mechanical Switches: GMMK Comes with pre installed Gateron Brown Tactile Mechanical switches. This switch is not loud so you can use it in a quiet office setup as well as your gaming setup. The barebones keyboard switches are backlit RGB SMD LED compatible so our ABS keycaps become extra bright and easy to read. You can swap and 3 pin Mechanical clicky, linear, or tactile mechanical switches with this board.

OEM Layout: A standard ANSI layout with standard sized bottom row makes GMMK widely compatible with 3rd party standard keycaps available in the current marketplace - with brands like Keychron, Akko, RK Royal Kludge, Epomaker etc and with wide range of color like white black or pink keycaps makes the board pop out. The full aluminum metal top plate and ABS plastic bottom plate makes the build perfect for fine sound tuning - be it clacky or thocky.

【The Special Edition of EPOMAKER TH80】As every new year offers an exciting opportunity for a fresh start and new beginnings, EPOMAKER is bringing a special edition of the highly-praised TH80 mechanical keyboard to the community. The contrasting colors of vivid purple and black colorway, the upgraded software, and the brand-new structural design all contributes this masterpiece of EPOMAKER Team.

【Fully Upgraded Software for More Possibilities】EPOMAKER TH80 SE mechanical keyboard features the upgraded EPOMAKER Software and chip that can automatically check Win/Mac mode, check battery status(FN+B), keyboard mode and programmable Fn Layers(FN+Spacebar). More than that, a variety of default RGB effects that you can easily switch between each other with simple shortcuts.

【Three Modes of Connectivity: Bluetooth 5.0&2.4GHz&Type-C Cable】Like TH80 PRO, the TH80 SE is equipped with a 4000mah large capacity battery that supports wireless and wired connections. By the wireless option, either Bluetooth (up to 5.0) or 2.4GHz can be chosen, and the polling rate can be up to 1000hz with 2.4GHz. By the wired mode, macro can be programmed to better fit your typing habits. The modes can be easily switched by Fn+1/2/3(Bluetooth) / 4(2.4GHz) / 5(USB Wired).

【WIred and Wireless】Equipped with ultra-fast 2.4G wireless transmission technology, this keyboard is more stable and reliable, the transmission distance is up to 10 meters(approx 30ft). Also, comes with a detachable USB cable, you can easily charge the keyboard as well as shifting to wired mode per your needs

【MECHANICAL GAMING KEYBOARD】 87 Keys Compact portable Mechanical Gaming Keyboard with Custom Mechanical Feeling Keyboard Switches (Outemu red/blue switches). Designed for longevity with greater durability and responsiveness. The switches are of the highest quality, tested for 50 million keystrokes.

【HIGH QUALITY AND RELIABLE PERFORMANCE】Ergonomic Design and High quality durable Illuminated panel and ABS construction with double-shot injection molded keycaps and mechanical switches, Support 6 kinds of led light effect,It is very durable and will not scratch. The perfect mechanical keyboard for office or home use. Micro mechanical keyboard WITHOUT separate number gaming keypad.(Backlight is white)

【Coral Sea Theme Ergonomic Keyboard】This 60 percent keyboard is with unique Xvx Profile PBT keycap and themed shell, showing the coral sea pattern in 360 degrees, which have excellent touch experience and long serving time. The colorful design can bring a more pleasant mood to games or work.

【High-performance 2.4G Wireless Keyboard】Up to 10m wireless working distance, enables the keyboard to achieve long-range wireless control. The receiver on the back of the keyboard. Play and plug, conveniently designed for gaming or office or home use. Two working modes, wired(Type C cable) and wireless, enjoy the freedom of being wireless while still not compromising performance by going wired.

【Compact 60% Keyboard】This 60% gaming keyboard has a perfect size and it's good for all environnement, business travel games office home use, without Numpad, more practical for Gamers and Typist, give more space to your desk.

❤ Anti-ghosting 104 Keys. N-key rollover ▶ Allowing multi-keys to work simultaneously with high speed. Each key is controlled by independent switch, let you enjoy high-grade games with fast response

❤ DIY Blue Switches ▶ Custom mechanical switches designed for longevity, responsiveness, and durability. Mechanical keys with medium resistance, audible click sound, and tactile feedback. 50 million times keystroke test. Include 5 spare switches for replacement. Blue switch is clicky and audible

❤ Programable full RGB backlighting ▶ You can program all of the keys to be the same color/what color you want with no driver needed.13 RGB Backlighting mode with Fn+Ins. There is a solid color backlit mode. Double-shot keycaps for crystal clear backlighting and extreme durability

WHITE BACKLIT GAMING KEYBOARD: MageGee gaming keyboard is designed with single white lighting effect, 20 different backlit modes, 5 backlight brightness levels and 5 backlit speed, creating a cool and colorful game atmosphere to enhance the excitement of the game. The backlight can be easily turned off. NOTE: THE WHITE & PINK / WHITE & BLUE KEYBOARDS COME WITH AN EXTRA SET OF KEYCAPS IN THE NEGATIVE COLOR SCHEME. THE BLACK & GRAY / GRAY & BLACK KEYBOARDS COME WITH 16 RED KEYCAPS.

MECHANICAL GAMING KEYBOARD: This keyboard with blue switches has professional game mechanical shaft body with crisp click sound, delivering ultimate typing and gaming performance, more long-lasting and durable. Floating keys design, the keys of keyboard trigger sensitively.

ERGONOMIC DESIGNED MECHANICAL KEYBOARD: The keyboard adopts ergonomic design and premium metal panel construction to make it super stable and pretty comfortable to type on without wrist support. Two-color injection keycaps provide clear uniform backlit, ensuring that all letters are resistant to scratches, abrasion and fading. The keyboard is connected to computers through USB cable, easy to use, no driver needed, just plug and play.

The Keychron K6 is a compact 65% layout white backlight Bluetooth wireless mechanical keyboard made for Mac and Windows. The K6 is crafted to maximize your workspace and enhance productivity.

With a unique Mac layout, Windows compatibility and dedicated arrow keys, the K6 is offering convenient accessibility to all the essential multimedia and function keys through the combination of key presses, yet compact enough to let you reach your mouse easier. Extra keycaps for both Windows and Mac operating systems are included.

Connects with up to 3 devices via the reliable Broadcom Bluetooth 5.1 chipset and switch among them easily for multitasking needs. The K6 is best to fit home, office and light gaming use while connecting with your smartphone, laptop and PC. It also has wired mode with USB Type-C connection.

RGB Keyboard and Mouse Combo; The Redragon S107includes RGB LED 104 Keys Backlit Mechanical Feel Computer Keyboard and Red LED Backlit Gaming Mouse. Ideal for PC marathon gaming sessions

RGB Backlit Mechanical Feel Gaming Keyboard, Redragon LED RGB Keyboard, 7 colors, 6 backlight effects, 4 backlight brightness levels and adjustable breathing speed, the illumination can be completely turned off

Ergonomic Designed Keyboard waterproof, with 104 keys, 25 keys without conflict, 11 multimedia keys. WIN key can be disabled for gaming. The Keyboard has great ergonomics and a space saving design delivering a pure, fluid gaming experience

🌈【RGB Lighting Keyboard and Mouse Combo】MageGee RGB keyboard with cool RGB lighting. Double Injection Keycap provide crystal clear uniform backlight and ergonomic curves, more advanced technology, clearer fonts and better light transmission.The bottom of the keyboard is designed with a foldable bracket, choose the height you need!

🌈【7 Colors Breathing Backlight System】The gaming mouse has 7 dazzling color breathing backlight, supports 6 levels of DPI adjustment (600-3200 DPI), and has internal indicator lights, so when you are playing games, you can play at high DPI, move faster on your screen, do some quick responses and give you an unparalleled sense of gaming experience.

🌈【Round Volume Knob Design】Round volume knob design, left and right rotation to adjust the volume of both office and game can be quickly adjusted. By FN+F1-F12 combination. Quickly switch between multimedia playback, volume adjustment and other functions Convenient and fast!

Rainbow backlit gaming keyboard, seven colors breathing backlit mouse. Ergonomic design for wired keyboard and mouse, comfortable to operate.

Professional mechanical feeling for gaming pc and office computer, not the real mechanical keyboard, but it well worth.

Standard 104 keys led keyboard, removable keycaps. Enhanced durability and splashproof. Laser carved characters, non-slip design.

【Retro Typewriter Style Mechanical Keyboard】It's a cute and funning white keyboard, plating punk rounded keycap with beautiful blue switch clicky-clacky sound make typing enjoyable, just like a typewriter.

【104-Key Anti-ghosting Keyboards】This is a Full-Size keyboard, featuring standard keyboard layout with F1-F12 function keys and number pad, provides high responsive commands for typing and gaming.

【Multiple LED Ice Blue Backlit Modes】The Keyboard is Double-shot injection molded keycap for clear backlight and extreme durability, press Fn+Ins/HM/Pg/Del/End can adjust various kinds lighting effect, arrow keys change backlight brightness and speed.

Mechanical Blue Switches - Mechanical switch gives sensitive response and good touch. Blue switche with fast response and nice clicky sound, great for both office use and gaming. (Cherry MX equivalent).

Customizable LED Backlit - 21 backlit Modes can be adjusted through FN keys combination. The backlit modes can be customized easily without installing software, it is a great choice to DIY your stylish keyboard.

Leading Particulars - 104 keys mechanical gaming keyboard provides all Keys Rollover Anti-ghosting Mode, FN key shortcuts activating, Macro setting available,create your own macros and with blazing push-button accuracy. Enjoy the impressive gaming feelings with this keyboard.

Durable Gaming Keyboard: 104 Key Wired USB Gaming Keyboard with quiet keys for longevity, durability, and responsiveness delivering precise tactile feedback for flawless gaming performance.

LED Backlighted Keyboard: 4 LED lighting backlit modes, breathing(7-color alternate). 3 Adjustable permanent mixed backlit modes, changeable breathing, or permanent lighting mode. The keycaps offer clear uniform backlighting.

Ergonomic Splash-Proof Design: The PC Gaming Keyboard has been ergonomically designed to be a superb typing tool for office work as well. You'll love the feel and keystroke accuracy, which leads to fewer errors and typos.

🌟【Ergonomic Design with Wrist Rest】This silent keyboard features a scientific stepped keycap design to maximize hand comfort for long hours of gaming or work. It also provides you with an ergonomic typing angle (7°) and wrist support during use. All keys have a soft feel and no loud clicks. It will not affect others when staying up late typing or playing games, it is very suitable for office or games.

🌟【LED Backlit Light Up Keyboard】There are 2 light-up modes and 3 levels of brightness for choice. ☼: Static Backlit/turn off; FN+☼: Dynamic backlight. Fn+PgUp: Adjust the brightness plus; Fn+PgDn: Adjust the brightness reduction. FN+ +/-: Adjust the speed of the dynamic backlight. (Note: the light is not RGB, the light color cannot be changed).

🌟【Durable Metal Panel Keyboard】This rainbow backlit keyboard is designed with an aluminum alloy panel, which not only improves the overall texture of the USB keyboard but also greatly improves the durability and water resistance. The metal frame on the keyboard is also coated with rubber oil, which is skin-friendly and feels more comfortable. At the same time, there are 4 drainage holes at the bottom of the led keyboard, you don't worry about spilled liquids that will damage the computer keyboard.

Metal Panel Keyboard--Our gaming keyboard is designed with an Aluminum alloy panel. Cool brushed metal panel not only enhances the texture of the keyboard but also extremely improves the durability of the whole keyboard. This light up keyboard has a water-resistant function, you don't have to worry about spilled liquids damaging it.

Soft & Responsive Keys--All keys are very soft to touch and offer very precise keystrokes, ideal for work or gaming. Our white gaming keyboard has a lifespan of 10,000,000 clicks. The double-colored injection keycaps offer crystal clear uniform backlighting and the letters will never fade away.

Cool Rainbow Backlight Keyboard--The colorful keyboard has a 7-color rainbow LED backlight, and each key is colored brightly, so you can type and play games even in a dark environment without difficulty, and the soft light won’t hurt your eyes. You can adjust the brightness and breathing speed of the backlit according to your preference. Let you immerse the game world in a cool atmosphere (Note: The light is not RGB, the color of light cannot be changed).

【Large Print Keyboard】- The large keys are slightly spaced, featuring big print letters to lowers the chance of hitting the wrong key. Perfect for elderly, the visually impaired, schools, special needs departments and libraries, as well as companies.

【White LED Backlight】- Bright and evenly distributed backlit keys, easy typing in lower light environment. Ideal for studio work, office. Backlit can choose to turn on/off and adjust brightness.

【Full Size & Ergonomics Design】- Unfold the feet at back of the keyboard to reduce hand fatigue and enjoy long hours of playing. Full QWERTY English (US) 104 key keyboard layout with numeric keypad, Large Print keys provides superior comfort without forcing you to relearn how to type.

💻⌨️🖥️【Retro Typewriter Style Round Keycaps】Mechanical blue switch offers a quicker and springier response, crisp click sound, precise tactile feedback for ultimate gaming performance. Double-shot injection molded Vintage steampunk round keycaps for clear backlight and extreme durability, The stepped floating keycap fit your fingertips perfectly for precise positioning, prevent fatigue and wrong typing. Comes with keycap puller for easy keycaps cleaning.

🖥️⌨️💻【Multimedia & Backlight Control Knob】This wired mechanical keyboard effortlessly controls media thanks to its dedicated media control keys. Quick-access buttons for media volume, backlight effect, music play/pause/switch. You can switch 19 different lighting effects or adjust the backlit brightness and speed. And you can create 3 customized backlight as you like. Long press knob for three seconds to switch between media and lighting modes.

💻⌨️🖥️【Metal Panel & Magnetic Wrist Rest】The computer keyboard panel is made of top-grade aluminium alloy material, with matte-finish texture, sturdy and robust enough to protect it from scratch. The ergonomic ABS palm rest provides firm support that alleviates pressure on your wrist from gaming at an elevated angle. The surface has a smooth and comfortable touch that enhances the feeling of the keyboard. USB connector for a reliable connection and ultimate gaming performance.

【Compact 61 Layout】This MK21 gaming keyboard is a small size keyboard, use 60% layout, can make you have a neat desktop with organized gears on, save space TKL design, keep all the necessary keys, long type-c USB cable(about 1.6m/62.9in), offering more space for mouse movement , maximum to utilize your extra desk space, easy to carry or use whenever or wherever you are, perfect for TPS/FPS gamer or daily using in home, work or on the go.

【Multiple RGB Backlit Color and Mode】This portable mechanical gaming keyboard can offer 14 different kinds of chroma RGB backlit effect, 8 kinds of light color, you can adjust the brightness, changing speed, or turn off the backlight if you need, and also customize your own backlit according to your preference, optimize the visual experience, more cool and interesting, can enhance the competitive atmosphere when gaming.

【Mechanical Switch】This RGB gaming keyboard wired is made of mechanical clicky blue switch with audible click sound and tactile feedback, can click up to 50 million times, designed for longetivity, responsiveness and durability, can meet you needs of clear sound and click in your daily using and gaming, Support full key anti-ghosting function, allow non-conflict keystroke working when typing with high speed, more accurate.

【Tiger Theme 60 percent keyboard】This compact mechanical keyboard 61-key black Acrylic Material RGB gaming keyboard, 360º Combining art with modern technology, the keyboard is no longer a cold technology product, but a kind of art full of temperature. Keyboard with the tiger pattern double-shot translucent keycaps, your friends will be amazed when they see it!

【 Brand New-Cabin Keycap】The cabin keycap perfectly combines the advantages of Dye-Sublimation pattern and pudding light transmission, and every mechanical switch on the keyboard works efficiently as if sitting in the cabin. Let you enjoy the comfortable feel and key design. High quality, the color is engraved into the keycaps.

【Hot Swappable Keyboard】When it comes to the feel and performance of your switches, every detail counts. For this model, we go with gateron G pro pre-lubed red switches. A 3-pin/5-pin, PCB-mount design makes installation a breeze, while a 50-million-keystroke lifespan means you won’t need to swap out your set anytime soon.

❤[ Retro Typewriter Style Punk Keyboard ] : These keycaps adopt two-color injection molding process, which is durable and lasting. And the unique round keycaps make this keyboard so different to traditional keyboard

❤[ Linear Red Switches ] Linear mechanical red switches are quieter than blue switches. And fast action with small resistance without a tactile bump feel. Gamers often prefer red switches because they are not as springy, and easier to push down faster

❤[ 6 DPI Level Mouse with Backlit ] : Ergonomic mouse has 6 adjustable DPI levels: 600/800/1200/1600/2400/3200. Two DPI buttons make it easy to adjust the DPI speed. Equipped with seven buttons: Left button, Right button, Forward, Back, DPI+/- button and scroll wheel. And this mouse has 8 lighting modes ( 7-color circulatory breathing mode and 7 solid color breathing )3 millions keystroke tests ensure longer life span, click whatever you want at anytime.

✅ HIGH PERFORMANCE + GREAT VALUE. With a response time of only 2 ms, the KLIM Chroma is among the very best keyboards available on the market thanks to its fast membrane keys. We have used high-quality materials and components in its construction to ensure it works flawlessly for many years. All while keeping a very affordable price to give you the best value for your money!

✅ QUIET AND COMFORTABLE + IDEAL TO WORK FROM HOME. The KLIM Chroma was conceived to be as quiet as can be, especially compared to a noisy mechanical keyboard. Each keystroke produces a soft sound, providing a very pleasant typing experience. You will never bother anyone around you with loud typing ever again! 📘BONUS: receive a free copy of the eBook "Increase productivity & gaming skills through faster typing" after your purchase.

✅ AESTHETICS. The keyboard is an essential piece of equipment for any computer. It takes a prominent position in your desk and will stay there 24/7, so it might as well look good. The chromatic RGB lighting effects will definitely be noticed, especially in the dark. This greatly helps you to type in low light conditions if you are not used to touch typing. The lights are fixed but can be turned on and off using a small switch at the back.

Now NJ80 has been upgraded to AP500 version with new features of Bluetooth,2.4Ghz and wired programmability and customizability of the dynamic lighting effects in the driver.The new driver with new UI interface allows to customize your desired layout more easily and efficiently.FN key can be reassigned to any key for using the FN shortcuts to your preference.

Upgrade your typing experience by moderately pre-lubed switches and stabs that bring a buttery smooth typing experience right out of box.The clean white appearance provides a pleasing aesthetic.The neat 75% layout greatly frees up desktop space, allowing more movement for the mouse.

Carefully selected PBT with 90% high concentration provides unique matte texture on the surface,like caressing soft sand. The high-end dye-sublimation printing technology produces sharp and clear legends that are not easy to fade or get oiled even with long-term use. The ergonomic Cherry Profile is not easy to cause fatigue with long time use.