Description:
Ring:bit car is a DIY smart car which is based on BBC micro:bit and ELECFREAKS ring:bit. Ring:bit has extended 3 channels of GPIO, among which 2 channels are used for driving servos and one channel of GPIO is undefined.

Features:
    Small size with cute outlook
    Programmable for road design
    Enable to draw graphics
    Main board and car body are dispensible.
    Power Supply: 3 AAA batteries

Package Includes:
1 X Ring:bit Car

Document link https://www.elecfreaks.com/learn-en/Ring_bit_Car_Kit_Case_01_Add_Package/