Usage Tips:Bluetooth + built-in microphone 2 USB, USB fast charging. Support for hands-free calls. Support car locate via smart-phone APP. Support advanced audio mission mode. Support the clock indicating that the power is off. High-quality digital stereo AM/FM radio Radio frequency:FM(87.5-108MHz)/AM(522-1620KHZ) Support for USB / TF card reader Audio support: MP3 / WMA / WAV formats and so on. Support folder reading function Support for remote control. Electronic rotary volume control MP3 playback supports pause / preview / repeat / random play and 10 up / down selections. Electronic type bass / treble / left and right balance / front and rear balance volume control Front AUX audio input port Rear L / R terminal RCA audio output port. 4-track high-power output (4 high-power speakers) Working voltage: DC12V Radio: Model: SWM-80A Main function: MP3, 2 USB, TF interface, AM, FM, Bluetooth, auxiliary input Audio format: MP3 / WMA / WAV formats and so on. Amplifier output power / channel: 60W x 4 Interface: 2 USB / TF / AUX IN Input voltage: 12V Bluetooth version: V4.0 Dimensions: 183mm (L) x 53mm (H) x 60mm (W) Note: 1. This car multimedia player is compatible with all cars. Please check the size of the product. 2. Installation requires knowledge of electronic products. Please install it with professional help. 3. If you are unsure whether this model is suitable for your car or not, you can send a message to our customer service for assistance. Color: As Shown Material: Metal+Plastic Package Contents: 1 * Car player 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.