Become a walking party with the BeatRinger Speaker Backpack. Equipped with Bluetooth capability and an incredible 15 hours of battery life per charge, this dynamic backpack produces brilliant and powerful sound with its built-in amplifier and bass. The BeatRinger also has an easy to use control panel on the back that is safeguarded with loads of padding to keep you comfortable as you wear it. Simply remove the padded panel from the neodymium magnets and have full control of your music. Unlike other portable speaker units, the BeatRinger has some seriously unprecedented power. Weighing 12.8 lbs, the built-in speaker can reach an amazing 110 dB – enough volume to turn any event into a party whether you’re hiking a mountain or running a road race.