PROZOR Mini Bluetooth Amplifier 4.1-CH Hi-Fi Stereo Amplifiers with Bluetooth 5.0

  4.1 Channel Bluetooth Power Amplifier Our Amplifier can connect 4 speakers (A,B,C,D)+1 subwoofer——AB two separate volume adjustment, CD two separate volume adjustment. Mini Size Interface: 3.5mm Audio, SD Card Slot, USB2.0 M Meterial: aluminum alloyB bluetooth version: 5.0 Input voltage: 12 ~ 13.5V / 2A ~ 5 A Input current: 12V 5A power supply (included) Max output power: 180 watts (RMS 45W * 4) Load impedance: 4-16 ohms Frequency response: 20Hz-20KHz         NOTE  This product is a power amplifier and cannot make sound by itself. It must work with the speaker There is an isolation plastic sheet at the bottom of the remote control, which needs to be removed before use, otherwise the remote control will not be powered. If the battery of the remote control can not work, you can replace it with CR2025 model battery.     Remote audio control controller The controller with remote audio adjustment allows you to adjust the volume more conveniently according to your preferences. Bluetooth 5.0 Support Bluetooth 5.0 wireless connection to ensure high-quality audio transmission. Certified power adapter Our package contains a S-299 4.1ch Mini Bluetooth Amplifier, a Remote Control and a 12V/5A Power supply.