Overview AlphaBot2 robot building kit based on BBC micro:bit V2 This AlphaBot2 robot kit is designed to use with the BBC micro:bit. It features rich common robot functions including line tracking, obstacle avoiding, ultrasonic ranging, Bluetooth/2.4G remote control, etc. Thanks to the highly integrated modular design, it is fairly easy to assemble by a snap, no soldering, no wiring. After a few minutes spent on hardware assembing, you're almost there, our open source demo codes is ready to help you get started fast. Package Contains BBC micro:bit V2 x1 AlphaBot2 for micro:bit (adapter board) x1 AlphaBot2-Base (base chassis) x1 Ultrasonic sensor x1 FC-20P cable 8cm x1 USB type A plug to micro B plug cable x1 AlphaBot2 for micro:bit screws x1 Screwdriver x1 For more details you may need to know, pls firstly send me message via Amazon, I will then send attached document including User Guide for you, thank you for patience.;D