Wirelessly Transmits Phone Call & Audio Streaming to the Car FM Stereo System via Bluetooth. Switch to Hands-free Mode Automatically from Music Streaming Status When Receiving Phone Call. Classical & Retro Design Adds Elegant to Your Car Interior. &Treble Tuner to Customize Your Music Style. Built-in Music Reprocessing Algorithm Guarantees Superior Music Experience Big Colorful TFT Display. Detects the Voltage of Car Battery When Powered on Dual USB Charging Ports: 5V/1A+ QC30 Support USB Disk Reading: Max 32GB Support: Natural, Rock, Classic, Soft, Jazz, DBB Multiple OSD language options With Line-out Function. Re-dial the Last Phone Number. Announce the Phone Number When Coming a Call. Material:plastic colour:black Package Contents: 1 * Car Mp3 Player Only the above package content, other products are not included. Note: Light 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.