<b>Welcome to Store of AUTUT & Enjoy your shopping</b> <br>①We are committed to providing you with good quality auto parts. <br>②Contact the ATUTUT Service Team when you encounter any product issue, we're willing to help you whole-heartedly within 48 hours. <br><br><b>Product Features</b> <br>①Suitable for car, motorbike, boat or PC. <br>②Small size, it's portable and can be installed anywhere. <br>③AUX high fidelity audio frequency inputs, give you a perfect listening. <br>④Well circuit designed,supplies high efficiency and high fidelity without noise. <br>⑤Two main channel output, with treble,bass,and volume control,very easy to use. <br>⑥Compatible with motorcycle, Mp3, Mp4, computer speaker and other audio applications. <br><br><b>Product Specifications</b> <br>Outer Material: Aluminum Alloy <br>Chip: TDA7056 <br>Channel Type: Dual Channel <br>Power Supply: DC 12V-15V / ≥2A <br>Output Power: 40W+40W <br>Output Impedance: 4Ω~8Ω <br>Undistorted power: 25W=25W (DC12V/4Ω) <br>Input terminal: RCA <br>Frequency Responce: 100Hz~20KHz <br>Signal-to-noise ratio: 85 db <br>Dimension: 14.7x9.5x4.1cm / 5.8"x3.7"x1.6" (L*W*H) <br>Package Content: 1 x Car Hi-Fi Stereo Amplifier (No power cable included) <br><br><b>Warm Tips about Refund & Return:</b> <br>①Please carry out the return and exchange process in the Amazon Help Center or your order page. <br>②Please refer to Amazon's return and exchange policy for the progress of return and exchange. Seller cannot interfere with the progress of the refund, please understand.