The transmitters sound is transmitted directly to the cars audio system. The Bluetooth function and USB outputs allow you to play music from many portable devices. In addition, the transmitter allows you to make hands-free phone calls through the radio, which ensures even greater safety while driving. The device is powered directly from the cigarette lighter socket. MAIN FEATURES The latest BLUETOOTH 5.0 technology Two USB ports Modern clear LED display RGB backlight Assistant activation option - use the smartphone function QC 3.0 fast charging technology Specification: Display: LED display Product material: ABS Bluetooth compatible version: 5.0 Bluetooth support - compatible DSP stereo music Effective range: ≤ 10 meters Inputs: 2 x USB, USB-C Playback method: FM playback Supported file types: MP3/WMA/APE/FAC/WAV FM frequency range: 87.5-108MHz (100KHz step) Signal-to-noise ratio: 85db (FM: 65db) Wave distortion: <0.05% (FM: <0.1%) Power supply: 12V-24V