Features: The sound effect the machine, creating a shocking and good sound quality . Suitable for most of Android stytem Car Radio Stereo, conveinent intallation without breaking . Low distortion, 80w x 4 max power output to improve the sound quality of your machine.EQ sound effects adjustment support various sound effects such as pop/rock/classical music to satisfy your music enjoyment. HIFI level chip matching bring clear and pleasant high-quality music. casing with good heat dissipation and delicate touch. Specification: Voltage: 12V Output power: 80w x 4 Material: Metal colour: black Package Contents: 1 x DSP Amplifier 1 cable 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.