Feature 1Professional Amplifier: Car subwoofer power amplifier is especially designed with high efficiency, wide frequency, voltage, stable performance and high reliability. 2Bluetooth 5.0: The car subwoofer speaker amplifier features up to 150 meters effective communication distance and two layers password protection, better than WIFI. 3Multiple Protection: Car audio power amplifier is professionally engineered with current protection, overload protection, short circuit protection, more secure in using. 4Reliable Material: Auto subwoofer power amplifier is made from superior metal and electronic components, with strong heat dissipation performance, durable to use. 5Convenient Installation: The car speaker subwoofer amplifier comes with compact size, which provides much more convenience for installation, no modification is required.Item Type: Car Subwoofer Power AmplifierMaterial: MetalColour: BlackVoltage: 12VMaximum Power: 1000WImpedance: 4Bluetooth: 5.0Total Harmonic Distortion: Less Than 0.1%Frequency Response: 30Hz-280KHzSignal to Noise Ratio: 89dbApplicable: Universal .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Car Subwoofer Power Amplifier