Active subwoofer for car 10 inch slim design with treble function1、68mm ultra-thin under-seat subwoofer, which fits nicely under the passenger side and saves space in the car. 2、High-powered active subwoofer provides nice low-frequency performance, making the bass output pure and making the audio more vivid. 3、Support for audio playback via BT connection to your phones, built-in amplifier, reliable performance, effectively enhance the sound of the speaker. 4、PU leather wrapped wooden body, effectively reduce the noise caused by vibrations. High-strength stainless steel speaker protective mesh cover, not easy to rust, strong resistance to pressure. 5、Delivery includes the installation wires to help you quickly complete the installation, compatible with 12.0V voltage car, truck, SUV, RV, etc.