This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com Audio:Maximum Sound Level: 85dBA. Frequency Range: 108Hz - 20kHz. Drivers: One 2" driver and Two ¾" tweeters. Waterproof: IPX7 rated: UE ROLL can be immersed in liquid up to 1m for up to 30 minutes.

Big sound--with deep bass--for a full-range listening experience Wireless and ultra-compact so you can take Bose sound anywhere, Bluetooth Transmission Range Up to 30' Built-in speakerphone lets you take calls out loud; Lithium-ion battery plays up to 10 hours on full charge