Select S Series models sport a premium and elegant design in Black or White with magnesium and aluminum materials, and all of them incorporate a built-in lithium polymer battery that when coupled with the all new and advanced large-capacity optional sheet battery, you can stay mobile and unplugged for up to 15 hours.
The integrated passive subwoofer features a ported enclosure for enhance bass performance. boomBOTTLE's built-in rechargeable lithium-ion battery provides up to 10 hours of continuous playback on a single charge.