1. 2.0-inch high-definition full-color screen, color interface display 2. One-click of mobile phone voice assistant 3. Real-time display of car battery voltage 4. Support Bluetooth hands-free calls, built-in microphone, answer calls safely 5. Support the A2DP function of mobile phones, and play high-quality mobile music directly after connecting to Bluetooth; 6. Support TF card/U disk expansion to in MP3/WMA/WAV/FLAC/APE lossless format; 7. Cycle mode selection (random play, single cycle, all cycle, folder cycle); EQ mode selection 8. View and select folder song files 9. When playing Bluetooth music on mobile phones, the and song titles are displayed synchronously parameter: Bluetooth version: 5.0 Working voltage: 12-24V Limit voltage: 9-26V USB1 output: DC 5V/1A USB2 output: DC 5V/3.0A 9V/2.5A 12V /2A USB3: U disk interface Sensitivity: -42dB +/3db 360 Frequency: 2.402-2.480ghz Bluetooth effective distance: 8 meters Sensitivity: -92dBm RF output: 4 dBm Standby power consumption: 45ma (MAX) Working power consumption: 65ma(MAX) FM frequency: 87.5MHz-108.0MHz Transmit power: 87 dBuv Colour:black Material:plastic Package Contents: 1 x car transmitter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.