Specifications:Get great sound on move with this hi-fi amplifier, which is also a great option for connection to your home audiosystem or compatible device.Power switch with LED display, triple acoustics pattern conversion, input and output wire and volume control.Mini size easy to installation by DIY, especially good fit for car, motor bike ,computer speaker and other homeaudio DIY.Type: Audio AmplifierMaterial: Metal + PlasticsSNR: 90dbFrequency Response: 20-20khzDegree of Distortion: 0.02(1khz)Output Power: 500W x 2CH at 14.4VDC InputSupply Voltage: 9-15VDCImpedance: 4-16Size: 11cm x 8cm x 4cm/4.33" x 3.15" x 1.57" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Audio Amplifier1 x Power Line(42cm)1 x Loudspeaker Wire(42cm)