T-5 smart control button is used in cars, motorcycles, bicycles, etc. Product functions: Bluetooth photography Music switching Volume adjustment Can call up the phone's built-in voice interaction system, similar to Siri. Answer and hang up calls Type: Car Motorcycle Bike Handlebar Media Controller Wireless Bluetooth Remote Button Condition: 100% New Fitment:Direct Replacement uitable for cycling, Mainly suitable for cycling enthusiasts Bluetooth Handsfree, One key to answer , ride more safely Voice Assistant, Double click "-"to wake upthe Siri, Android assistant Bluetooth 5.3 Chip: Built-in Bluetooth 5.3 chip , built-irperformance decoding chip , ultra-longstandby , ultra-low power consumption Material: Plastic colour: Black Package Contents: 1 x Remote Controler Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.