For Car owners who have modified their Android car models, generally with a variable screen power amplifier of 16W, and a power amplifier of 4x80W, enhancing the sound effect. Equipped with fiber optic input and standard 16PIN adapter cable, plug and play, no cable breakage, non-destructive installation. Support for mobile app sound adjustment. Support for AUX/USB drive sound input. Support wireless BT music playback. Suitable for 12V vehicles Product specification: 1. Output power: 80Wx4 2. Signal-to-noise ratio: 70dB 3. Standard distortion: 0.1% 4. Standby current: 5mA 5. Voltage range: 9-16V 6. Maximum working current: 25A 7. 12V power 8. 16Pin universal wire Functions: 1. Support adjustment 2. Support music playback: MP3 playback (optional) 3. Support wireless BT music 4. Support AUX input 5. Support optical fiber input 6. Support coaxial input 7. Support output 8. Support USB connection 9. Support APP (iOS/Android) control Note:Due to different production batches, there may be slight differences in the product, which does not affect use. Colour:Black Material:Metal Package Contents: 1 * Car Radio set 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.