The device transmits music and phone calls directly via Bluetooth to the cars FM stereo system. The product has a high-quality microphone (used as a hands-free kit), and thanks to the excellent bass and treble tuning function, the device provides much greater sound enhancement capabilities. MAIN FEATURES: Hands-free kit with FM transmitter function The latest Bluetooth 5.3 technology USB output with QC 3.0 fast charging function and USB-C PD 20 W output Automatic switching of hands-free mode Advanced bass and treble enhancement technology Modern design with LED display RGB backlight Advanced sound enhancement technology MULTIPLE SOURCES FOR PLAYING MUSIC | The transmitter can send music to the radio via many devices. A special USB output allows you to connect a flash drive with your favorite music. However, the Bluetooth function offers the greatest spectrum of possibilities, thanks to which it is possible to transmit sound from our phone or other devices with this function. BASS AND TREBLE ENHANCEMENT FUNCTION Feel our even better volume and quality thanks to the BLOW transmitter. Special "BASS" and "TRE" buttons with a flavor on the front panel are adjusted to the bass and treble sounds respectively, with which the control button In addition, the transmitter has advanced sound enhancement technology HANDS-FREE KIT The high-quality microphone built into the device allows you to safely have conversations while driving. The phone connects to the transmitter via the Bluetooth function - the transmitter has version 5.3, which improves and stabilizes data transmission and is even better adapted to mobile devices and wireless electronic devices. We can answer an incoming call using the button. Hands-free mode switches from heavy music playback mode when receiving calls.QC 3.0 QUICK CHARGING AND USB-C PD SOCKET 20WUSB has the Quick Charge version 3.0 function. This modern technological solution allows for much faster charging of devices - speeds it up compared to the simplest USB chargers even several times, and at the same time does not affect the faster battery life. In addition, the panel also has a PD USB-C 20 W connector.Specification: Bluetooth and version: 5.3 Bluetooth protocol: AVRCP, HFP, A2DP Frequency range: 87.5-108.0 MHz Frequency response: ±10 ppm Power supply: DC 12-24V 2 USB ports: QC3.0 + PD20W Dimensions: 52x51x75.5 mm Weight: 41 g Material: ABS