According to multiple sources, the Soundboks (Gen. 3) is the loudest Bluetooth speaker currently available. It has a measured max volume of 110 decibels, and a peak volume of 126dB with military-grade batteries providing 40 hours of non-stop beats each. The Soundboks (Gen. 3) is a large, weighty speaker that can easily shake the foundations of your home when cranked up. However, it is not the only loud Bluetooth speaker available. Other options include the SOUNDBOKS Go, which is a more affordable alternative to the Soundboks (Gen. 3) and has a measured max volume of 106 decibels, and the Ultimate Ears HYPERBOOM, which has a max volume of 98.3 decibels and is more portable than the Soundboks (Gen. 3) .