Features: Ultra-compact for your car: The small car charger fits perfectly freeing up more space and providing you with a comfortable aesthetic. quality materials are safer: solid-body, sturdy service life, protecting your equipment from overheating, overvoltage and overcurrent. Immersive 3D Stereo Audio Effect: 5.3 FM transmitter features an engaging 3D audio effect. The stereo-based technology embraces the listeners by sound from all direction, creating the atmosphere of being at a concert or party simply in the car. BT V5.3 and Hands-Free Calling: BT V5.3 provides a faster-connection and more stable audio streaming with less interference. Activate the voice-assistant, answer, hang-up, redials or reject phone calls can all be handled by one-touch of the button without holding smartphones in hands, which ensures safer driving. Wide compatibility, suitable for most devices such as mobile phones/tablets. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description Interface: High Speed USB2.0 Screen: LED screen Power Source: Lighter Power USB output: QC3.0+PD20W Power supply: DC12-24V Support file type: MP3/WMA Operating Current: 45mA DC12V Bit rate: 64-320kbps FM frequency range: 87.5-108MHz Signal to noise ratio: 85db (FM: 65db) Harmonic distortion:Working temperature: 0°C-60°C Suitable models: DC12V -24V universal Material:ABS Support qc3.0+PD20W fast charging function Package List: 1X Car BT MP3 Hands-Free Music Player