Description: 【Output 40W+40W】: AK-280 audio power amplifier, simple compact but practical and powerful, provides 40W+40W rated power, low distortion supplies a clearer, stronger and more powerful sound, designed for the customers who pursue HiFi sound. 【Bass Treble Volume Adjustment】: HIFI audio power amplifier, designed with volume, treble and bass control knobs, you can easily adjust as needed to get the sound you want. 【Blue LED lights design】: Home audio amplifier, Aluminum alloy body with LED lights for the volume knobs, make the product looked beautiful. 【Wide Applications】: Digital audio power amplifier is widly used for computers, mobile phones, , notebooks, MP3, MP4,TVs and projectors with AV audio etc. 【Compact and Portable】: Hifi stereo amplifier, Mini Compact, Size 155mmx75mmx46mm, easy to bring it to your car, desktops or anywhere you needed. Specification: Material: Aluminum Alloy Size: 155mmx75mmx46mm/6.10inchx2.95inchx1.81inch Rated Voltage: 12V Rated Power: 40WX2 Rated Frequent: 20-20KHZ Resolution: 47K Distortion rate: 0.1 Signal noise ratio: 90db Impedance: 4-8 Amplifier Type: HIFI amplifier Package Includes: 1Pcs Audio Power Amplifier Note: Please allow slightly errors due to manual measurement and different monitors.