Product descriptionGoose Neck Design and 1.44 LCD Display ScreenFlexible metal hose, Convenient to adjust its direction.nbsp;Large LCD Screen shows the incoming phone number, current song's name and the voltage of the storage battery clearly.nbsp;Easy Installation,Plug and play, Easy to use.Memory FunctionFast Bluetooth pairing. Once paired, the FM transmitter will automatically connect with the last paired smart device when turned on next time.Clear Sound and Hand-Free CallingAdopted advanced interference and noise cancellation technology - CVC technology creates full duplex sound and suppresses noise and wind. Take hands-free calls for pleasurable driving experienceSpecifications:Effective Bluetooth Range: 10 metersWorking Voltage: 10V~24VAudio Input/Output: 3.5mm audio interfaceUSB Charging Port: 5V/2.1ACompatible Phone Models: Most devices on the marke that Bluetooth enabled devices such as Samsung, HTC, Blackberry, Sony, Tablet etc.nbsp;NOTE:1.Please do not violently rotate the head part when using it (the rotation angle shall not exceed 90).2.Tune it to an unused station.3.The max input amp; output current of the transmitter varies with charged devices, due to charged devices are able to limit output current automatically.