Description DIY Soldering Project Kit, five classic games, with USB cable and AAA battery box Classic background music ON/OFF, humanized keypad arrangement. 12mm big button, better feel. Scoring function, challenge yourself, beginner soldering project electronic kit learning to soldering mini USB 5V power with the dot matrix of 16*8, STC chip high speed and high speed. All copper mini USB, 3 bit mini digital tube New PDF and paper english soldering guide, guide the soldering steps for each component, and the welding sequence of components needs to follow from low to high
