New ATOTO IR Wireless Romote Steering wheel controller with backlight keys is improved and specially programmed ONLY for ATOTO ATOTO A6 Series. It does not work with any other headunit on the market. With this controller kit, user can use it in vehicles that has no original steering wheel keys control to operate the headunit. There are 5 keys on the kit, and 2 of them has multifunction. They work as: Volume+/Volume-/Hang Up(Skip Forward)/Answer(Skip Next)/Voice Command. This ATOTO SWC kit could also assist driver to run system recovery in case ATOTO Headunit system crashes and drivers are not able to access “reset factory data” from system settings. As it comes with a IR transmitter which needs to be hooked to the specified jack hole in the back of ATOTO A6 car stereo