Check the listing for details. Bluetooth 5.0 Car Wireless FM Transmitter Adapter 2USB PD Charger Hands-Free Lot. Color: Black, Condition: New. Listed at 2.95 USD. Features: Dual USB car charger: 2 USB charging port to charge most USB Devices. Input 12V/24V, 1a port with USB reading and charge function; smart 3. 1 A charge port which can intelligently identify Android or iOS devices and charging. Hands-free Calls: built-in microphone, switch to hands-free mode automatically from music playing status when receiving calls. Answer/reject/hand up/recall all in 1 key. Car battery voltage function: Show 3 seconds voltage when plug into the car outlet port. Always keep battery state of health. Then it turn to automatic play mode. Music playing: Support Bluetooth /USB disk/MP3 Player. With anti-interference performance and CVC technology.Listening to music while charging. Automatically connect memorized paired when power on. Compatibility: 12V/24V adaptor, work with any Vehicle type car/van/trucks/boats that has a FM radio receiver and no Bluetooth functionality. Compatible with iPad,iphone,Samsung,Google,LG,HTC and Bluetooth Device. Specifications:Material Type : ABSItem Type : FM Transmitters Input Voltage : 12-24V Output Voltage : DC5.0V/3.1A Special Features : HandsfreeSupport Car Voltage display : Reminder Voltage lowSupport Handsfree Call : Bluetooth HandsfreeBuild in Microphone : Hands free talking Car KitBluetooth FM Transmitter : Transmissor FM Bluetooth Package Contents： 1-10 x Car Bluetooth FM Transmitter or Cable