Input power:DC12-13.5V>3A Output power:20W*2RMS Speaker impedance: 4-8 Ω Frequency response: 20Hz-20KHz Minimum THD: 80dB Input Sensitivity: 200mV Input Impedance: 47k Ohm

• Class -D 2020 amplifier chip provides efficient, powerful sound,3.5 mm jack allows for easy connection to iPods, cell phones, and all sorts of mp3 players.
• State of the art design using surface mount components and advanced engineering for proven performance, reduced signal interference, and long operational life.
• Aluminum enclosure that is lightweight, yet sturdy, and acts as a heat sink.
• Small size and clean 20-watt output makes it perfect for both home and car audio applications.
• 100% MANUFACTURER MONEY BACK GUARANTEE：1 Year Warranty and Lifetime Support Guarantee.

Class -D 2020 amplifier chip provides efficient, powerful sound,3.5 mm jack allows for easy connection to iPods, cell phones, and all sorts of mp3 players.LEPY