Best Protechtrader in 2026

Perfect to make electronics projects like Crystal or Transistor Radios DIY Electronics Kits

High 20,000 ohm impedance with resistance over 20 million ohms and a capacitance of 15,000 pf

Rated Sensitivity of 57db at 1KHz in the frequency range from 200 to 8,000Hz

Large 1.15in+ LCD Screen Digital Multimeter for easy to read on the go testing

Custom Color Coded Symbols for Voltage, Amperage/Current, and Resistance are clearly labeled with their numeric values around the dial

NPN & PNP Transistor Tester along with a Built in Buzzer for Audible Continuity Test

Basic Digital Multimeter with easy to read high contrast LCD Screen for easy to read on the go testing

Custom Color Coded Symbols for Voltage, Amperage/Current, and Resistance are clearly labeled with their numeric values around the dial

NPN & PNP Digital Transistor Tester along with a Built in Buzzer for Audible Continuity Test

RS-550s Brushed DC Motor Weight: ~7.7oz (218g) Body Length: 2.24in (57mm) Body Diameter: 1.46in (37.5mm)

Operating Voltage: ~6v - 20v | Optimal Volt Range: 12v - 18v | 18 Volt Nominal (Optimal Power, Speed, and Torque near 18 volts)

Shaft Length ~0.35 inch / ~11/32in or ~9mm | Diameter ~0.125 inch / 1/8in or ~3.175mm | Style: Round | Stall Current: ~85A | Efficiency: ~70% | No Load RPM: ~20000 rpms | RPM Peak Efficiency: ~17000 rpms

3/8in Drill Chuck Key-Less - No Chuck Key Needed - Hold and Turn to Tighten or Loosen Chuck

Fits Many Drill Models and Brands with 3/8-in 24-UNF Thread Shaft/Spinal Chuck Mount

Chuck can tighten on drill bits from 1/32 inch to 3/8 inch (0.8mm - 10mm)

Perfect to make electronics projects such as Crystal or Transistor Radios often used in schools and STEM electronic experiments requiring high impedance ear piece

High 20,000 ohm impedance with resistance over 20 million ohms and a capacitance of 15,000 pf

Rated Sensitivity of 57db at 1KHz in the frequency range from 200 to 8,000Hz

30w Soldering Iron - Hand Held Pencil Electronics Solder Welding Tool For Precision Electronics Repair Rework & DIY Experiments

Nickel & Iron Plated Copper Tip Ensures Excellent Heat Transfer and Conductibility Resulting in Fast Heat Up Time for Projects Circuit Board work and Prototyping

Factory Pre Tinned with Chrome Plated Shank to Maximize Use Out of the Box - Can replace similiar sized 25w (25 Watt) Solder Iron Also

Easy Electronics is the prequel to Make: Electronics by Charles Platt which was written with the complete beginner in mind to be used with this electronics component pack.

Electronic Components needed for experiments in Make: Easy Electronics Handbook by Charles Platt conveniently packaged in a custom made fake matchbox which is used as an electronics project enclosure in an experiment.

Components are individually sorted in reusable envelopes printed with identification details including name, electrical schematic diagram symbols, and experiment number references to allow you to quickly find the part you need.

1.【60 Hours Playtime & Wireless Charging】On a single charge, each ear bud has up to 8 hours of listening time. With additional charging in the charging case, X19 bluetooth headphones get a total of 60 hours of uninterrupted music playback. You can simply charge these wireless sports earbuds via the included USB-C cable or wirelessly with any Qi-certified charging pad (not included). Besides, built-in dual LED power display make it more clear to show the battery power of the case and wireless headphones.

2.【Hi-Fi Stereo Audio & Crystal-clear Call】Engineered with 13-mm dual-chamber speaker driver unit, these wireless earphones keep the sound crisp and balanced with deep bass, delivering a surround sound experience that you can take with you anywhere. Besides, two built-in exclusive microphones enhance conference calls performance, make you sound clear and loud during phone calls. Good for web meeting and online class.

3.【Designed for Sports & IPX7 Waterproof】With flexible, secure-fit ear hooks and ergonomic design, these true wireless earbuds fit in your ear perfectly and never fall out of your ears even you are doing strenuous exercise. Equipped with 4 pairs of different size ( XS, S, M, L ) rubber ear tips for options, you won't feel tired or painful even if you have small ears. Rating at IPX7 waterproof ensure the bluetooth headset keep out water drop and sweat. Best choice for workout, running, gym.

【LED Digital Display Charging Case】RIZIZI sports bluetooth earbuds have a LED digital display,it can display the quantity of electricity directly and clearly without open the lid.The number represents the percentage of charging case’s remaining power.And the 4 independent power consumption indicators represent the charging process of the earbuds.That makes the charge visible.no more worry about headphones running out of battery when go out.And you also can schedule the best charging time.

【Support Wireless Charging and USB C Charging& Noise Reduction Mic】RIZIZI sports wireless headphones support wireless charging and USB C charging, both methods are convenient, just choose one is suitable for you.(Package doesn't include wireless charger). Our bluetooth headphones can reduce surrounding noise while calling to a certain extent, such as the wind sound,current sound and so on.Provide better calling quality,so you don't need to worry about ambient noise interfering with your call.

【40hrs Playtime&Stereo Sound】 RIZIZI wireless earbuds have a playtime of 6 - 8 hours on a single charge, The charging case can recharge the earbuds 3-4 times.so you can get about 40 hours total playtime from a fully charged charging case, Excellent power storage capability providing hours of excellent listening.That allows you to enjoy the music throughout the day. Our bluetooth headphones offer a natural and authentic sound, let you immerse yourself in your own musical world completely.

1️⃣【120 Hours Playback & 2600mAh Charging Case】Equipped with 70mAh lithium battery, CAPOXO D8 earbuds can last 9 hours of use on single fully charge, longer battery life than most earphones on the market. And the 2600 mAh large capacity magnetic charging station can hold charge, and charges the earbuds automatically when it's placed inside the case, thus you can use the headphones about 120 hours non-stop. Besides, the charging base has a USB output port, can act as a power bank to charge your phone in an emergency. Never worried about power shortage, carry out outdoor activities freely.

2️⃣【Comfortable for Sports & IPX7 Waterproof】Due to the flexible and soft ear hooks, CAPOXO D8 Bluetooth sports headphones stay in place very well and stay comfortable for extended periods of time when playing sports, you don't need worry about them falling off or hurt. And it comes with 3 different sized ear caps for different ear sizes. IPX7 waterproof can effectively prevent water splash and sweat, which makes them more suited for exercise/gym/fitness/workout/running.

3️⃣【Bluetooth 5.3 & One-step Fast Pairing】Adopted the newest Bluetooth V5.3 and wireless technology, our CAPOXO D8 earphones connect quickly and stably. When removed from the charging case, these true wireless Bluetooth headset will auto turn on and connect to previously paired device seamlessly and instantaneously.(After the 1st successful pairing.) Super easy to set up and use, suitable for men and women of all ages. Wide compatible with most Bluetooth-enabled devices including iPhone or Android or Windows Products, iPad, smart TV, computer, laptop, tablets etc.

Crystal Clear Sound Quality - These wireless headphones features with large 13mm delivers to deliver rich, immersive sound with deep bass and clear treble. Enjoy your favorite tunes like never before with our STADOR Bluetooth wireless earbuds and ensure that you hear every note and beat with utmost clarity, whether you're commuting or working out.

56H Playback & LED Power Display: The wireless earphones with 400 mAh large battery capacity charging case can provide extra 3 times full charge for both earbuds. Up to 7 hours of listening time (56 hours total in turn combined with the charging case). The bluetooth in-ear headphones features dual digital smart power display to show the charging status of the bluetooth earphones in the case and the case battery level in real-time. It's so convenient in your life and a business trip.

One-Step Pairing & Smart Touch Control: Just open and connect, the bluetooth earbuds will power on and pair with each other automatically when you open the lid of the case. Then just click the bluetooth setting on your phone to connect. The wireless headset is designed with touch sensors on the earbuds, so easy to control calls and music when you wear them and activate the voice assistant like siri by triple taps.

Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ear

Universal fit that’s comfortable all day

Automatically on, automatically connected

Active noise cancellation for immersive sound

Transparency mode for hearing and connecting with the world around you

Three sizes of soft, tapered silicone tips for a customizable fit

Quick access to Siri by saying “ Hey Siri ”.Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ear

More than 24 hours total listening time with the Charging Case

Effortless setup, in-ear detection, and automatic switching for a magical experience

Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ear

Active Noise Cancellation blocks outside noise, so you can immerse yourself in music

Transparency mode for hearing and interacting with the world around you

AppleCare+ extends your coverage to two years from your AppleCare+ purchase date and adds up to two incidents of accidental damage coverage, each subject to a service fee of $29 plus applicable tax.

24/7 priority access to Apple experts by chat or phone

Mail-in or carry-in repairs

RICHER AUDIO EXPERIENCE – The Apple-designed H2 chip pushes advanced audio performance even further, resulting in smarter noise cancellation and more immersive sound. The low-distortion, custom-built driver delivers crisp, clear high notes and deep, rich bass in stunning definition. So every sound is more vivid than ever..Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ear

NEXT-LEVEL ACTIVE NOISE CANCELLATION – Up to 2x more Active Noise Cancellation than the previous AirPods Pro for dramatically less noise on your commute, or when you want to focus. Adaptive Transparency lets you comfortably hear the world around you, adjusting for intense noise—like sirens or construction—in real time.

CUSTOMIZABLE FIT – Now with four pairs of silicone tips (XS, S, M, L) to fit a wider range of ears and provide all-day comfort. The tips create an acoustic seal to help keep out noise and secure AirPods Pro in place.

This adapter lets you connect devices that use a 3.5 mm audio plug to your Lightning devices.

Works with all devices that have a Lightning connector and support iOS 10 or later, including iPod touch, iPad, and iPhone.

Unlike traditional, circular earbuds, the design of the EarPods is defined by the geometry of the ear. Which makes them more comfortable for more people than any other earbud-style headphones.

The speakers inside the EarPods have been engineered to maximize sound output and minimize sound loss, which means you get high-quality audio.

The EarPods also include a built-in remote that lets you adjust the volume, control the playback of music and video, and answer or end calls with a pinch of the cord.

Spatial audio with dynamic head tracking places sound all around you.Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ear

Adaptive EQ automatically tunes music to your ears

All-new contoured design

Exactly what you want to hear. Galaxy Buds+ are the perfect fitting earbuds to isolate you from distracting noises, so you can stay focused on what you want. And if you’d like to filter in some of the outside world to be more in-tune with your surroundings, you can switch on Ambient Aware2. Hear flight annozments, oncoming traffic or your order number while still enjoying your favorite playlist or podcast.Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ear

22 hours of serious sound. Get up to 11 hours of nonstop music on a single charge, then pop your Galaxy Buds+ in the wireless charging case and get nearly 11 more. Forgot to charge them the night before, No worries. 3 minutes of charging gives you one hour of play time, so you have enough juice for your commute or workout.

Your voice, loud and clear. Ensure you’re heard clearly. A dedicated internal and two external microphones pick up your voice and isolate it from outside noises. When you’re on a call, your voice comes through richly and confidently, even in noisy locations.

Unlike traditional, circular earbuds, the design of the EarPods is defined by the geometry of the ear. Which makes them more comfortable for more people than any other earbud-style headphones.

The speakers inside the EarPods have been engineered to maximize sound output and minimize sound loss, which means you get high-quality audio.

The EarPods with Lightning Connector also include a built-in remote that lets you adjust the volume, control the playback of music and video, and answer or end calls with a pinch of the cord.

LED Digital Display & 50H Play Time - The digital LED power display on the outside of the case facilitates easily manage of power, and the 400mAh battery capacity of the charging case provides five full charges for both 40mAh earbuds, each lasting play to five hours on a single charge. hence by taking turns, ZIUTY wireless ear buds can keep up with your rhythm for 50 hours long.

Leading Bluetooth Technology - Featuring advanced Bluetooth V5.3 technology, headphones greatly improves transmission speed and reduces sound signal loss, providing you with a stable and low latency listening experience within 15 meters range.

Immersive Sound and Clear Calls - True wireless headphones offer superior full-bodied sound quality. immersing yourself in a concert-like three-dimensional soundstage effect whether you're at the gym, office, bus, or home. Each earbud has a built-in microphone for phone calls.

LED Digital Display & 50H Play Time - The digital LED power display on the outside of the case facilitates easily manage of power, and the 400mAh battery capacity of the charging case provides five full charges for both 40mAh earbuds, each lasting play to five hours on a single charge. hence by taking turns, true wireless earbuds can keep up with your rhythm for 50 hours long.

Leading Bluetooth Technology - Featuring advanced V5.3 Bluetooth technology, headphone greatly improves transmission speed and reduces sound signal loss, providing you with a stable and low latency listening experience within 15 meters range.

Immersive Sound and Clear Calls - True wireless headphones offer superior full-bodied sound quality. immersing yourself in a concert-like three-dimensional soundstage effect whether you're at the gym, office, bus, or home. Each earbud has a built-in microphone for phone calls.

LED Digital Display & 50H Play Time - The digital LED power display on the outside of the case facilitates easily manage of power, and the 400mAh battery capacity of the charging case provides five full charges for both 40mAh earbuds, each lasting play to five hours on a single charge. hence by taking turns, ZIUTY wireless ear buds can keep up with your rhythm for 50 hours long.

Leading Bluetooth Technology - Featuring advanced Bluetooth V5.3 technology, headphones greatly improves transmission speed and reduces sound signal loss, providing you with a stable and low latency listening experience within 15 meters range.

Immersive Sound and Clear Calls - True wireless headphones offer superior full-bodied sound quality. immersing yourself in a concert-like three-dimensional soundstage effect whether you're at the gym, office, bus, or home. Each earbud has a built-in microphone for phone calls.

60H Playback and LED Digital Display：Single wireless earbuds can be use 10Hrs, up to 60Hrs of listening time with 5 additional charges from 650mAh battery capacity charging case. Charging case with a clear digital display, as well as the left and right sides with the earbuds power display, each grid represents 25% of the power. During charging and connected, the LED light will flash.

High-fidelity Audio and Built-in MIC : Cascho true wireless stereo headphones use a 13.4mm graphene diaphragm, which sufficiently strong bass and naturally connects to the mid and high frequencies. Built-in high quality MIC,allowing you to fully enjoy crystal clear calls.

Bluetooth 5.3 and One Step Auto Connect : With advanced bluetooth headphones 5.3 technology, you can get a 2X fast transfer speed (75% higher than the previous generation) and a more stable connection, almost no delay. Open the lid of the charging case, the bluetooth earbuds can be automatically connected to the previous paired device, Put back the charging case, the earphones will automatically disconnect.

【COMFORTABLE&EXCELLENT SOUND】Solid ergonomic wear experience, Durable, Designed with a memory wire technology, the in-ear headphones make it easier to keep moving, providing a locked-in fit. Independent sound channel for each driver, the sound will not be distorted, Bring you a new kind of auditory sense, dental, and sound like feeling extremely rich, The mid bass and treble driver unit have a rich, vigorous performance at bass, midrange and treble; bass, mids and treble is rich and energetic.

【NOISE CANCELING EARPHONE EARPHONES】Yinyoo KZ ZST Hybrid Earphones Banlance Armature with Dynamic In-ear Earphone 1BA+1DD Hifi Headset , use the patent technology silicon tips. The standard of independent patent technology silicon tips,from the independent patent design of silicone earmuffs ,compared with conventional earmuffs can more comfortable fit human ear ,to sound more direct transmission of the eardrum ,and get better quality experience. Improve noise canceling performance.

【HIGH PERFORMANCE】 Yinyoo KZ ZST Hybrid Earphones with enhance the sound quality and exterior again the hybrid technology ,special armature and dynamic driver ,friendly design and free removable cable deign ,high performance for audio earphones around 20usd. perfect for home,parties,school,Christmas gift,Thanksgiving day,Halloween,Black Friday

Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ear

Flexible flipbook, two-way design allows you to wear the headphones either in-ear or behind-the-ear

Thanks to twistable and flex soft technologies, these headphones are lightweight and ergonomically built to ensure secure fi t and stability no matter the workout.

Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ear

Flexible, secure-fit wingtips for all-day comfort and stability

Custom acoustic platform delivers powerful, balanced sound