Car Universal Steering Wheel Remote Control Learning New Ergonomic design, can be fixed on steering wheel, improve great operation convenience and safety for user. Applies to control various car CD/VCD/DVD or other car electronic products with remote control. Built-in high compatibility chip, can copy over 95% infrared format on existing market. Simple and easy copy operation, high correct ratio for copy Power supply by 3V button battery, power consumption is very low.