Cocoda Bluetooth FM transmitter for car brings you a safe and relaxing driving Smart Voice Navigation When connected with your phone via Bluetooth, the car FM transmitter will announce to navigate from your phone’s app. Enjoy effortless driving on your journey. Safe for Calling The Bluetooth radio transmitter adapter car kit has built-in microphone with echo cancellation and noise suppression (CVC) technology, which frees your hands for calling. Easy to answer/hang up/reject a call/redial the last number/adjust volume via the multifunctional button. Compact and Portable Unlike those bulky transmitters, our FM transmitter is small and space-saving, fitting your car cigarette lighter easily for safe driving. Stylish appearance with excellent durability makes it a perfect gift choice for your family and friends. Widely Compatible Advanced Bluetooth 5.0, fits for all Bluetooth enabled devices; Stream music, car navigation or calls from your mobile devices to car stereo system via FM radio signal. Note: Please do not play music from two sources simultaneously, or there will be two voices. If you want to change mode to play music, pause the music of the first source, and then play the music of the other source. How to Adjust FM Frequency? Step 1: Short press the call button till the display digit . Step 2: Rotate the MFB or press” Next/Previous Song” button to increase/decrease frequency. Specifications: Bluetooth Version: V5.0 FM Frequency: 87.5-108.0 MHz Input Voltage: DC 12V-24V USB Output: DC 5V/2.4A & 1A Read U-disk (Max capacity): 32GB Read SD card (Max capacity): 32GB Effective Range: 5m Package Included: 1x Bluetooth FM Transmitter 1x User Manual