Key Features Immersive Sound Experience: It uses digital intelligent amplifiers to provide powerful, balanced, and distortion-free sound, creating an unparalleled immersive sound quality experience. Free Adjustment: The various adjustment knobs concentrated on one side allow you to adjust the bass and various gain functions, such as phase shift, bass boost, input gain control, etc., making the music more in line with your preferences. Mini Size: It is a great solution if your car interior space is insufficient. It has a slim body (7.5cm/3in) and can be easily installed under most car seats and backrests, saving space without affecting performance. Dual Mode: This product is a full-range subwoofer and comes with both vocal and pure bass outputs. You can switch between vocal and pure bass modes through a switch to meet your various needs. Strong Compatibility: It supports high and low-level inputs, provides flexible connection options, and is compatible with various car stereo systems and car host devices. Selected Materials: Aluminum alloy shell ensures durability, providing reliable performance while ensuring high sound quality; The rubber cowhide ring horn and stainless steel horn guard also provide better sound effects with excellent elasticity and toughness. Application It is very suitable for installation in various vehicle models such as cars, trucks, or jeeps. Specifications Material: Rubber, Aluminum Alloy, Stainless Steel Color: Black Style: Modern Surface Treatment: Baking Varnish Assembly Required: Yes Actual Power: 200W Maximum Power: 300W Frequency Response Range: 30-100Hz Sensitivity: 91db Impedance: 4Ω Gross Weight: 4.4kg/9.7lbs Net Weight: 3.9kg/8.6lbs Speaker Diameter: 20cm/8in Product Size: 31.5*24*7.5cm/12.4*9.44*3in Package Size: 40*33*13cm/15.74*13*5.12in Package Included 1*Car Subwoofer 5*Matched Connecting Wires 1*English Manual 1 Set of Installation Brackets and Screws   Notes 1.Please carefully read the manual and strictly follow the precautions to have a better experience. 2.Please ensure that the product is securely installed with sufficient clearance to avoid interference with seat adjustment or other vehicle components. 3.During prolonged or high-volume use, this product may accumulate heat. Please ensure that the product is adequately ventilated to facilitate heat dissipation and prevent overheating. 4.Please regularly check the wire connections and clean this product to prevent dust accumulation that may affect performance over time.