Noise: <65dBSize: 25 x 14 cm (L x W)Wheel size: 6 x 2.7cm (Dia. x H)Motor power supply is 3V ~ 6V.All the parameter above is tested without load.Simple mechanical structure, it is easy to install.Smart robot car with code disk, ideal for DIY.Use for educational learning, smart robot car competition, and entertainment.It can be used for distance measurement and velocity.This car is the tachometer encoder.It can be used with other devices to realize function of tracing, obstacle avoidance, distance testing, speed testing, and wireless remote control.Made of premium environment-friendly materials
