AcoustMax International Corporation

OS01 is an audio heavyweight with new 270-degree sound, plus up to 200 watts and up to 100 hours of playtime. The rigid design ensures the Rockin' Roller 270 performs, whether onstage or at the tailgate. If you have an urge to crank up the bass, press the easily found BASS button. The front panel on this Monster Rockin' Roller 270 Bluetooth speaker lets you control the EQ settings, radio, and mic levels.

270 degree sound (Front, Left and Right)
Up to 200 Watts (when plugged in), 120 Watts (battery power)
Wirelessly charge your devices with the built-in Qi Charger
Water resistant exterior makes it perfect for outdoors