Describe:Material: ABSPackaging size: 6.5x5.2x9.7cmWeight: 47gPackaging: 1 X car Bluetooth transmitterfeature:1. Stable Bluetooth connection, do you want to make a clear and unintentional phone with your family or friends? The FIRSTE Bluetooth car adapter has fixed the problem of noise and series interference when using the free phone function. Now you can quickly and easily make free calls from the phone without interruption. More importantly, the Bluetooth transmitter with a wide Bluetooth compatibility of the car function can be used in conjunction with most of the Bluetooth device.2. This Bluetooth car FM transmitter is compatible with most of the Bluetooth device, streamlined music, and directly call the automotive stereo system speaker through the mobile phone mobile device through the FM radio signal.