1.Adjustable to any angles ，and fit to all types of Vehicles2.Support bluetooth 4.0/3.0/2.0， Support voice & calling prompt3.Support charger for Android & Iphone or other device， max. Output 2.5A4. Full frequency FM transmitter， total support 208 frequency5. Digital Display6. Support TF card MP3/WMA music play7. Bluetooth answer， hang up， reject， redial calls and other functions8. Echo cancellation and noise suppression (CVC) technology during a call9. Automatic power-off memory function10.Bluetooth stereo music playRated operating voltage: 12V---24VWorking voltage limits: 9V-----28VUSB Output: 5V/2.5AMemory card format: MP3 WMA WAV FLABluetooth Version: Bluetooth V2.1+EDR baseband and modemBluetooth transmission distance: 10MFM transmission frequency: class2 and class3Bluetooth receiver sensitivity: -85dBm sensitivitySNR: SNR > 93dBThe Microphone valid distance: 0.5---2MWorking temperature: 0~50 degreeDistortion: <0��1%Frequency Response: 20Hz-15KhzFM transmission frequency: 87��5~108MhzFM transmitter: Stereo digital PLL locking Package Includes: 1 x Car Bluetooth MP3 1 x Use Manual