This audio amplifier is widely compatible for many devices, which is multifunctional and practical. Featuring dual channels, this audio amplifier has stable transmission as well as lossless, HiFi and stereo sound effect. It is constructed of aluminum material. The length of this audio amplifier is 13cm, width is 11cm and thickness is 4.7cm. This audio amplifier is suitable for daily use. Item Name: Amplifier Material: Aluminum Model: AK270 Input Voltage: DC12V Current Requirements: More Than 2A Output Power: 2 x 20W Features: HiFi, Dual Channels, Portable Size Details: 13cm x 11cm x 4.7cm/5.12" x 4.33" x 1.85" (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: 1x Amplifier