Has excellent heat dissipation With four channels Strong adaptability to support the installation of 90% of the car models Easy to operate Dual-sensor noise reduction design 0 current sound 0 noise Product Description: Strong adaptability support 90% of the car models installed multi-vehicle compatible, non-destructive installation. Dual-sensor noise reduction design 0 current sound 0 noise. Promote the car audio, the second into a high-level concert hall, designed to upgrade the car multi-channel high-level audio use. Color: Black Material: metal Package Contents: 1 x audio amplifier 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.