Description:Clear HiFi sound and low distortion can bring you excellent listening experience. Treble, bass and volume are adjustable and you can adjust according to your needs.Mini and compact design makes the portability of the amplifier even easier and you can take it with you easily for any outdoor activities.It is made of aluminum alloy material and it is durable to use. This amplifier is easy to install and operate, what is more, it does not take up too much space.The length of the product is 15cm, the width is 9cm, the height is 3.5cm.The RCA and AUX interfaces are compatible for iPad, mobile phone, MP3, MP4, CD player, TV, computer, etc. It can be used for home, car, golf cart, etc.Item Name: AmplifierMaterial: Aluminum AlloyModel: ST-838Rated Voltage: 12VRated Power: 2 x 20W + 40WRated Frequency: 20-20KHzAnalysis: 47KDistortion Rate: 0.4 PercentSignal-to-noise Ratio: 80dBImpedance: 4-8Receiving Method: Audio InputFeatures: HiFi, Mini, Wide ApplicabilitySize Details: 15cm x 9cm x 3.5cm/5.91" x 3.54" x 1.38" (Approx.)Notes: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.Package Includes:1 x Amplifier (Power Adapter Not Included)1 x User Manual