Product features:QC3.0 fast charge and Type-C charging The Clydek Bluetooth 5.0 FM transmitter is equipped with 3 USB ports: QC3.0 + Type-C + 5V / 1A supports charging three devices at the same time. With the latest QC3.0 technology, you can experience the extreme charging of your QC3.0 enabled devices. With the type C connection (5 V / 3A) your iOS or Android device is charged efficiently. The 5V / 1A USB port can read a U-Stick with up to 32 GB.Crystal singing bowls & EQ function The Bluetooth FM transmitter has CVC noise suppression technology. The sound quality is overwhelming when playing music. It also supports the adjustment function of the equalizer. In Music mode, simply press the EQ button to toggle the bass effect on and off. The car audio quality is improved instantly.Three ways to stream your music The transmitter can stream clear stereo music in three different ways - 1. The FM transmitter can play music from Bluetooth-enabled devices on car radio via FM signal. 2. Stream music from an SD card (up to 32GB); 3. Transfer music from a USB stick (up to 32 GB). Press and hold the " PREVIOUS " button to switch the mode: Bluetooth-USB-TF. Music in MP3 / WMA / FLAC / WAV format is supported.Hands-free kit After the Bluetooth FM transmitter connects to your smartphone, you can easily make calls using echo cancellation and CVC noise cancellation. With an integrated microphone and hands-free function, you can answer, interrupt, reject or redial calls at the touch of a button to ensure safe driving.Bluetooth V5.0 and stable transmission Is equipped with Bluetooth 5.0 technology. The Clydek FM transmitter has a more stable connection and faster transmission when connected to the smartphone. In contrast to Bluetooth version 4.2, Bluetooth 5.0 has: 2x data transmission speed, 4x transmission range, 8x broadcast massage capacity, also compatible with V1, V2, V3, V4, V4.1, V4.2.:Manuals1. Connect the product to the cigarette lighter while it turns on automatically. The LED flashes and shows HI battery voltage BT FM frequency2. Switch your FM car radio on to an empty FM frequency and set the frequency of the Bluetooth FM transmitter in the same way as your car radio. You can then enjoy music from your car stereo.3. Then you can connect it to your phone for music.How do I reach Bluetooth hands-free calls?Press the FM Phone button to answer or end the call.Press the FM Phone button twice to redial the last call.Press and hold the FM phone button to reject the incoming call.When making a call, press and hold the FM phone button to switch between private calling and handsfree calling.Specifications:Nominal operating voltage: 12V 24VUSB1 output: 5V / 1.0AUSB2 output: QC3.0Output 3: type CSupport Music Format: MP3 / WMA / WAV / APE / FLACSupport U-Disk / TF Card Capacity: 1G 32GBluetooth version: 5.0Bluetooth audio processing: DSP and A2DP (Advanced Audio Distribution Profile)Transmission distance: 2mFrequency range: 76 - 108.0 MHzFM transmission distance: 10MPackage contents:1 * Bluetooth FM transmitter