Description:Features: brand new and high quality Designed with 2x80W high power, presenting stereo sound to the greatest extent. Designed with 3 rotating adjustment buttons for treble, and total volumn respectively. Designed with simple wiring connection, suitable for DIY Application of green hands. Equipped with 2 filter capacitors, 4 field effect transistors for great performance. Equipped with short-circuit for protection logic for ensuring safety. Specifications: Material: Metal Size: 18x12.5 for cm/7.08x4.92 inches Approx. Working Voltage: Dual AC15-22V Maximum Output Power: 80W + 80W Op Amp Type: 4558 Chip Type: FET Net Weight: 195g Approx. Note: 1.Please allow slight inaccuracy due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set of Amplifier Board