blue seed v4.1 Car Bluetooth Device with FM Transmitter, USB Cable, FM Player, Transmitter, 3.5mm Connector, MP3 Player, Car Charger  (Black)

Bluetooth Handsfree Car Charger,FM Transmitter&Music adapter,2.10A Dual USB Port 1.0A Dual USB : One is 1A, can charge small screen cellphone,camera and read USB data.Please use pure charge line when use this one charging. Another is 2.10A, can charge for all andriod & IOS cellphone etc. Input voltage: 12-24V,Output voltage : Max 5V DC/3.1A 2.Frequency Connect: The device FM frequency is 87.5-108MHz.Please turn car radio channels to one of Frequency 87.5-108.0Mhz.Then plug the device, make sure the car charger keeps the same frequency to the car radio channels . Connect phone bluetooth or insert the USB/TF card, FM Transmitter will start to play.MUSIC PLAYING FUNCTION : Support Bluetooth Music/ USB Disk/ TF Card / WMA / MP3 format. Listening to music while charging.Power off memory function,From broken song began to play. DUAL USB CAR CHARGER : 2.10A and 1.0A,Input 12v/24v offer convenient and charging for you and your friends.USB charging cable is not included.