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Smart Car Smart Robot Tracing Car Obstacle Avoidance Car - Yellow
Smart car chassis tracing car Robot car chassis with tachometer encoder Ideal for DIY Mechanical structure is simple - easy to install With a 2-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