Bluetooth connectivity lets you connect wirelessly to compatible Bluetooth devices Compact design makes it small enough to fit in a bag or cupholder, with a convenient carry strap for easy on-the-go portability 16-hour battery life lets you listen for many hours before needing a recharge Speaker produces powerful, clear sound that's perfect for everyday listening IP67-rated waterproof and dustproof construction allows for indoor or outdoor use, with a UV coating for extra outdoor durability