Description: This car bluetooth-compatible handsfree MP3 player provides USB ports to charge your phone or tablet. The car bluetooth-compatible adapter USB charger can transfer the audio to the car stereo system, and play music via bluetooth. The car bluetooth-compatible media player adopts bluetooth-compatible 5.0 that makes the connection more stable and fast. The car wireless media player is designed with dual digital displays that can display voltage and frequency. The car bluetooth-compatible adapter features QC 3.0 technology and can charge a phone faster. Specification: Color: Show as picture. Size: Show as picture. Rated working voltage: 12V-24V. Ultimate working voltage: 10~26V. USB1: U disk playback 1G-64G. USB2: PD3.0 (Max 15W). USB3: QC3.0 (maximum 15W). Working temperature: 0~50 degrees. Support playback format: MP3/WMA/WAV/FLAC. Signal to noise ratio: >60dB. Battery voltage error: 0.5V. Charging current error: 0.1A. bluetooth-compatible version: Version 5.0. bluetooth-compatible transmission distance: 10M. bluetooth-compatible microphone effective distance: 0.5~2M. Transmitting frequency: 87.5~108Mhz. Note There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package included: 1x Car bluetooth-compatible adapter. 1x User manual.