Bluetooth Hands-Free Speaker: Never miss a call while driving. Built-in 3W speaker, hands-free answering, ensuring safe driving and not violating traffic rules. Voice control: double-click the M button to activate Siri or Google Assistant, then issue voice commands to control the car Bluetooth speaker, such as making calls or playing music. Easy to use: Just clip it on your car sun visor with the magnetic clip on the back, then connect it to your phone via Bluetooth. Support 2 mobile phones to connect. Clear and Loud Sound: With noise reduction and echo cancellation technology, ensures a clear call. Press and hold the +/- button to increase or decrease the volume. Tips: Please keep your phone away from the Bluetooth car speaker when talking. TF card support: built-in TF card slot, you can insert the TF card to play music and eliminate fatigue. Color: black Material: plastic Package content: 1 x car Bluetooth speaker 1 x Visor clipOnly 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 error is +/- 1-3cm.