Compact 12V Mini Audio Amplifier for Car Home Use with Clear Sound MP3 Player Portable Stereo Boost Features： 1、Wide Application: Power amplifier is widely used in car sound system, such as car speakers, and it has good sound quality, and brings you convenience. 2、High Fidelity Output: Mini amplifier has excellent sound output, which can ensure high definition and high fidelity of music. 3、Volume Adjustable: Mp3 power amplifier has knob control device, ou can adjust the volume level according to your needs, meeting the different needs of people. 4、Premium Material: Stereo power amplifier is made of aluminum which is anti aging and heat resistance, high hardness high strength, moistureproof and easy to clean ,for long time use. 5、Easy to Operate: Mini amplifier operation is simple and easy to understand, you only need to press a few buttons to complete play and other operations. Specification： Item Type: Power Amplifier Materrial: Aluminum Input Voltage: DC12V Output Power: 20W Use: For car or home MP3 playback Package List： 1 x Power Amplifier 1 x Instruction Manual