Label:Yes Battery: cr2025 (Not included) Material: ABS Control distance: about 8m Color: black Features: wireless, remote control Control angle: effective emission angle 35 Product name: steering wheel remote control Number of buttons: 11 Applicable to: universal car multimedia player, car radio Size: As show 1. The multimedia player is easy to operate when driving. 2. Didn't explain. No connection steps need to be set. 3. After installing the cr2025 battery (Not included), as long as the device supports infrared connection, it can be controlled. 4. The emission angle is 35 degrees. The effective distance is within 8 meters. 5. It is used for remote control of various automotive CD/VCD/DVD or other automotive electronic products. 6. Prompt: Only models with enhanced infrared reception button are supported. Package Include: 1*Steering wheel Remote ControlNot include battery