Having said that, the S1 Professional typically peaks at around 109 decibels. It features a 3-channel mixer, with selections for reverb and EQ, plus multiple inputs for mics and instruments alongside a dedicated aux channel for other music sources. The speaker can very last up to eleven hrs with https://www.bluetoothspeaker.top/karaoke-bluetooth-speaker-dual-microphone-audio-home-karaoke-wireless-bluetooth-speaker/