10Inch 800W subwoofer, 360° to enhance the effect, nice sound quality, giving you a nice musical experience Built-in amplifiers, solid performance, can amplify the weak signal from the and promote the sound of the speaker High-quality aluminum alloy housing, fine workmanship, nice durability and shock resistance. Ultra-thin design, space-saving Delivery includes installation wires, stable transmission and seamless connection, help you quickly complete the installation Easy to install and use, compatible with 12.0V voltage for car, truck, RV, marine boat, etc Power: 800W(Maximum) Speaker Size: 10 Inch Impedance: 2Ω Frequency Response Ranges: 20-150Hz Sensitivity: equal 90dB Total Harmonic Distortion: Boost: 0-12dB Voltage: 12V (The product appearance and printed words depending on the batch, but this does not affect use) Color:As Shown Material:Metal Package Contents: 1 * 800W Car Subwoofer 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.