These robots are without batteries, and the battery is sold separately, and the battery type is 18650 3.7v, with no capacity limit, there is a link for downloading instructions, if you can"t find it, please do not hesitate to contact us.

The Black-line Tracking function allows the robot car to follow a predetermined path, perfect for creating intricate mazes or obstacle courses.nThe ultrasonic obstacle avoidance function of the steering gear enables the robot car to follow specific objects or people while avoiding any obstacles in its path.

Feature:

>>>Manual: Click here to open<<<

Programming language: CC++nCar Structure: AcrylicnMotor voltage range: 1-6VnMotor shaft length: 10mmnSpeed: 6.0V 100rpm/minnDrive mode: motor control is driven by L298NnControl mode: programming controlnPower supply mode: can be connected to external voltage 6~9Vn(The body is powered by two 18650 lithium batteries)