Sonoff TH16 - obsolete

Sonoff 4CH is a 4 channel WiFi switch allowing control of 4 devices at the same time. It is a very similar device as Sonoff Basic, nonetheless extending Basic's functionality to more than 1 device. The devices can be controlled either by switches as provided on the 4CH box or by eWeLink application as with any other Sonoff product

MAX98306 3.7W Stereo Amplifier - Class D Stereo Audio Amplifier 8 Ohm.

4x 18650 3.7V Parallel Lithium Battery features:
- Cable 10cm long
- Measures 80x76x 20mm
- Stack length max 67mm

Version compatible with Arduino Nano V3.0
It has an ATMega328P chip running at 16Mhz with bootloader loaded factory.
Characteristic:
- Microcontroller: ATmega328
- Operating Voltage (logic level): 5V
- Input Voltage (recommended): 7-12V
- Digital I / O Pins: 14 (6 PWM outputs)
- Analog Inputs: 8 (A0-A7)
- DC Current per I / O pin 40 mA
- Flash memory: 32 KB (2 KB used by the bootloader)
- SRAM: 2 KB
- EEPROM: 1 KB
- Frequency Clock: 16 MHz
- USB Communication - CH340
- Dimensions: 18 mm x 44 mm

Wired Bone Conductor Transducer - 8 Ohm 1 Watt
This amazing speaker does not have a movable cone like most From the speakers you've seen, instead, a small metal rod is wrapped with the voice coil.
When the current is driven through the coil, the magnetic field makes a piece of metal expands and contracts, if pressed against a flat surface or cavity makes it a speaker! Often these size transducers are pressed against the jaw or ear bone to turn the skull into a speaker socket.
The effect is a perfect quality sound that comes from your head and no one else can hear it. You can also press it against your elbow bone and stick a finger in your ear to listen to the audio transmitted through your arm!

The 908S 80W soldering iron has a power of 80W equipped with the 900M-B1.2 tip, LCD display to show the temperature setting (180 ~ 500 ℃). Fast heating. The tip is replaceable. The soldering iron is CE, RoHS certified. The kit includes 5 replacement tips and a welding holder.

It consists of a 16-character, 2-row display.
The display is compatible with the HD44780 controller.
Ideal for projects with ARDUINO.
You can use it with PIC, AVR, STM32. 16x2 1602 LCD display HD44780 Backlit Blue background features:
- LCD screen , 16 characters and 2 lines
- 5V power supply
- HD44780 compatible controller
- Backlit blue background, white letters
- Include an adjustable contrast pin
- Dimensions (mm): 80 x 36 x 12

Sonoff S26 is the freshest version of an intelligent socket made for EU power standards. It is extremely user friendly - you only need to plug it in your socket and pair with your device and it should run!