Material: This 2 channel car amplifier uses aluminum alloy as the material, which is durable, wear resistant and not easy to .Wide application: The stereo power amp is designed to be universal which is suitable for all kinds of .Adjustable: By using the bass sub woofer amplifier you can adjust the music playing sound according to your preference.Easy installation: This vehicle audio attachment is small in size which can be installed under the car chair.Convenient to use: The car sound adjustable accessory is controlled by bass frequency and it has short circuit protection.Parameters:Frequency response:10Hz~30KHzSignal to noise : 90DBSensitivity:200mV~8VDistortion:Less than 0.15%color: grayMaterial: aluminum alloyPackage Contents:1 x Two-way car amplifierOnly 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia