Wireless Vehicle Bluetooth FM Transmitter,1.44" LED Display Car Charger with 2 USB Port/TF Card/3.5MM Audio Jack 1.How to use : 1.Plug the device into the car cigarette lighter hole to power on. 2.On LCD screen,displays car battery voltage for seconds and with voice prompt : car battery voltage normal (or abnormal). 3.After voltage display,screen will shows frequency and Bluetooth LOGO icon with flickering . With voice prompt : Bluetooth is ready to pair. 4.Open the Bluetooth on your phone and search the device with name of HY88, after connected successfully, Bluetooth LOGO icon stop flicker. You can use Bluetooth to play music from your phone to car radio. 5.To use device music playing function, turn on the car FM radio , choose a clean channel, make sure the car radio channel is clean to avoid interference by local radio signal. 6.Long press the answer key button until the frequency display flicker, rotate it to adjust the FM frequency to match the car radio FM channel. Insert the USB or TF card, device will start to play automatically. 2.Hands Free Function Guiding : After connect your smart phone to this device: Answer call : short press Answer key to answer incoming call. Reject call : long press Answer key to hand up the incoming call Hand up : on calling or dialing state , short press Answer key to hand up Recall : short and quick press Answer key twice to recall the number which call in/out at last time. 3.Car Battery Voltage Function : For 12V /24V car, voltage display of car battery under 11.5V /23.1V or higher than 14.9V/27.3V means car battery issue. 4.Music Function: Please noted the priority play sequence is Bluetooth>TF card>USB.
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