1.Unleash your cell phone， get rid of the shackles of cables. Easily sync with your Bluetooth device， play tunes in your pocket through your car stereo in a superior Hi-Fi sound quality， make and receive calls on your phone Hands-Free while driving;2.User-friendly design: Just press down the control knob and the best station is automatically found for you! Equipped with On-Board Volume， Play Settings and Phone Controls makes you easy to control. It will aslo connect to the pre-set phone automatically when it turns on， so you needn't connect the phone with the FM transmitter every time;3.Goose-pipe with rotation prevention design keeps your devices steady & firm in its position. USB port lets you charge your smartphone or MP3 player while streaming. DC stabilizer and fully articulating head provides a perfect fit in nearly all car;4.Multifunctional design: Hands-free calls， enjoy clear music， GPS voice navigation， charge your device all in Mpow FM Transmitter;5.Control hub magnetically docked with the DC neck， easy to install and remove.Specification:Bluetooth profiles: HSP， HFP A2DP and AVRCP.Radio Type: FM FrequencyFrequency Range: 88.1-107.9MHzInterval: 0.1MHzBluetooth Range: Up to 30 feet (to get the best audio quality， we recommend to use the bluetooth transmitter within 20 feet.)Input voltage: DC 12~24VOutput voltage: DC 5V， 1APackage Included:- 1 x Bluetooth FM Transmitter- 1 x Car charger with goose pipe- 1 x User manual