Having said that, the S1 Pro typically peaks at around 109 decibels. It features a 3-channel mixer, with choices for reverb and EQ, plus multiple inputs for mics and instruments alongside a focused aux channel for other music resources. The speaker can very last as much as 11 hrs https://www.bluetoothspeaker.top/bluetooth-speaker-support-bluetooth-tf-usb-with-a-wireless-microphone-function/