2WD Smart Robot Chassis Car Kit with Speed Encoder Support Wireless Control

Features ● Smart car chassis tracing car Robot car chassis with code disk● Ideal for DIY● Mechanical structure is simple it is easy to install● This car is the tachometer encoder● With a 4 AA battery box batteries not included ● Can be used for distance measurement velocity● Can use with other devices to realize function of tracing obstacle avoidance distance testing speed testing wireless remote control● Size 20 x 14cm L x W ● Wheel size 6 5 x 2 7cm Dia x H Note Motor power supply is 3V 6V All the parameter above is tested without load The car Chassis is transparent you need to tear out protective paper It may be individually packaged with foam box or carton box Package included 1 x Car chassis2 x Gear motor2 x Car tire2 x Speed encoder2 x Fastener1 x Universal wheel1 x Screwdriver1 x Battery box batteries not included All necessary screw and nut