On the other hand, the S1 Professional typically peaks at around 109 decibels. It features a three-channel mixer, with selections for reverb and EQ, plus multiple inputs for mics and instruments alongside a focused aux channel for other music sources. The speaker can final up to 11 several hours https://www.bluetoothspeaker.top/smart-wireless-subwoofer-loudspeaker-audio-system-sound-outdoor-rechargeable-speaker/