ELENCO Sound Detecting Car Kit
By Elenco (21-881)
Build this exciting robotic car kit. It has a sensor, which detects sound and reacts to physical contact. It moves forward until it detects a noise or runs into something, which makes it reverse to the left and continue on tCAT47 Normalhe new course. A fun way to learn about motors and basic electronics. Soldering required. Requires two "AA" batteries, #292-015 (not included). Mfr. #21-881.