2.1 Channel Bluetooth Audio Amplifier Board Module High/Low Subwoofer 50W*2+100W
(left and right channel) Applicable speakers: 5W-30W/4Ω-16Ω subwoofer (subwoofer). Left and right channel audio output + subwoofer audio channel: 2.1 channel. Output power: 15W 2 (left and right channel) + 30W (subwoofer).