Specifications: Item Type: FM Transmitters Voltage: 12V Type: FM Transmitter , Car MP3 Player Charging Interfeces: Dual USB + Type C FM Transmitter: 87.5-108MHz Support: TF card / U disk capacity up to 32G Special Feature: Hands-free Calling , Contact with 2 Phones at the Same Time Functions: Voltage Detection , Noise Cancellation Size: 7.1cm*3.6cm Usage: FM Modulator , Multi-function Bluetooth Car Charger Model: Mobile Phone Charger ,Bluetooth Car Charger -Support quick charge -Total Power: 18W Max -USB 1 Output:4.5V/5A,5V/4.5A,9V/3A,12V/2.1A -Type-C Output:4.5V/5A,5V/4.5A,9V/3A,12V/2.4A -USB2 Output:5V/1.5A -Bluetooth transmission distance: 10M -Bluetooth microphone effective range: 5M Bluetooth Connection Operation: 1.Insert the product into the cigarette lighter socket to power it on 2.Adjust the car FM frequency to be consistent with that an empty channel frequency and save at the same frequency 3.Open the phone bluetooth to search for ''BSXY-8'' 4.When the connection is completed,the product can play music Features: -Quick Charge and Listen to Music, One Charger is Just Fine -Various interfaces can meet various requirements such as charging, listening to music, voice playing, etc. -Three-port Design Full Quick Charge Protocol -Three-port Design Full Quick Charge Protocol -Bluetooth 5.0 technology ensures longer and more stable transmission distance. -Equip with Bluetooth 5.0 technology, synchronous transmission without no delay, stereo esound effects. -Build-in HD microphone,one touch to answer incoming calls,reject,hang up and last redial. -Answer the phone: short press the hands-free key once after the incoming call. -Hang up the phone: short press the hands-free key once during the call. -Reject the call: long press the hands-free key for 2 seconds once for the incoming call. -Redial the last number: short press hands-free key twice continuously. -Lossless Decoding Demanding Sound Quality -Original sound transmission, and free from noise or current sound. Compatible with MP3/WAV/FLAC/APE/WMA audio formats. -Music playback is supported from external flash disk/TF card. -There is no need to install driver software, plug in and play audio files immediately. -Safer Driving with Smart Voltage Detection -When the car is switched on, the battery voltage can be automatically detected to ensure the safety. -Simultaneous Playback from Two Devices -- Never Monotonous -Two devices can be connected at the same time, which will be played firstly when used firstly. When an incoming call comes, the phone with the call will be automatically switched -Universal for All Phone and Car Models -It is suitable for mainstream 12V~24V vehicles on the market and is also compatible with various APPs. -Never Stop Charging Despite of Bumpy Roads -Lengthened anti-skid shrapnel is firm and secure, which won't bounce out on the bumpy roads.