Check the listing for details. FM Transmitter Wireless USB Charger Bluetooth Car Kit MP3 Player Radio Adapter. Condition: New. Listed at 12.99 USD. FM Transmitter Wireless USB Charger Bluetooth Car Kit MP3 Player Radio AdapterBluetooth FM transmitter: the phone, U disk, TF card, MP3 music inside to the car audio playback Car charging: can be through the USB interface, to the phone / iPad smart charge.Car Bluetooth hands-free: the phone can be a key through the Bluetooth hands-free call.Car USB: USB interface can be read through U disk, or card slot to read TF cardHigh fidelity stereo, using DIGITAL, PLL phase-locked loop technologyLCD display frequency, more convenientFull-frequency launch (up to 200 frequencies can be selected)With power off memory, you can store the current frequency of playDirect button, play / pause on a song / next songFeatures: with MP3Connection: BluetoothInterface: TF/Micro SD Card Slot,USB 2.0,3.5mm audio jackCompatible with: MP3,iPhone,SmartphonesMaterial: PlasticColor: Black Voltage: 12 - 24V Music Source: TF/Micro SD Card,USB flash disk,Flash drive,3.5mm stereo headphone jack,Cellphone,AUX,Bluetooth devices Bluetooth Version: V4.0 Bluetooth protocol: AVRCPPackage Include: 1 x Car Charger, 1 x Audio Cable