1[7 Functions] This product is a real steering wheel controller, equipped with 7 customizable functions of the steering wheel controller. 2[Provides Convenience] Convenient for you to control multimedia or answer phone calls through the steering wheel while driving. 3[High Quality] 100% brand new high quality products, through strict product quality control before shipping to ensure product quality. 4[Black Design] This steering wheel controller adopts a clock shaped round black design, which can be perfectly matched in all color models. 5[Wide Application] This smart wireless steering controller has a wide range of application, which can be used for most types of cars. Item Type: Steering Wheel Control Material: ABS. Color:Black Battery Model:CR2025 Battery Capacity:150mAh Rated Battery Voltage: 3V Functions: One Key Switching of Multimedia Playback, BT Answering/hanging Up Calls, Multimedia Volume Adjustment, Voice Function, Etc. Applicable Models: Universal Purpose 1 xSteeringWheelControl 1 x StorageBox1 x User Manual