- [Upgraded Version] DIY Soldering Project Game 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