Features: 1.High Power Output: The power amplifier delivers great amplification, with a maximum power output of 20W x 2, making it perfect for use in karaoke, home theater, and car radio systems. 2.Bluetooth Connection: With Bluetooth compatibility, this amplifier can easily connect to a wide range of devices, such as smartphones, tablets, and laptops, from up to 40 feet away, eliminating the need for complicated receiver pairing. 3.User Friendly Control Panel: The front control panel of this power amplifier features intuitive buttons and a rotary control center for easy operation and adjustment. 4.Independent Tone Control: The amplifier allows users to adjust bass and treble independently, making it easier to get clear and crisp sound. 5.Speaker Compatibility: The amplifier supports a range of different speaker sizes, from 4 16ohms, making it adaptable for use with different stereo systems. specification:Item Type: Power Amplifier Material: Aluminium Alloy Input Voltage: DC12V Bluetooth Version: Bluetooth 5.0 Frequency Response: 20Hz-20KHz Speaker Impedance: 4-16 PackageList:1 x PowerAmplifier 1 x Manual Note: 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.