Works with Alexa for voice control (Alexa device sold separately) ; Audio Formats :AAC, Apple Lossless, MP3, WMA The most powerful wireless speaker from Bose. Waveguide technology provides enough power to fill the largest rooms in your home with deep, rich sound Works with your Wi-Fi and Bluetooth devices to play music services like Amazon Music, Spotify Internet radio stations and your stored music library

Certified Refurbished product has been tested and certified by the manufacturer or by a third-party refurbisher to look and work like new, with limited to no signs of wear. The refurbishing process includes functionality testing, inspection, reconditioning and repackaging. The product ships with relevant accessories, a 90-day warranty, and may arrive in a generic white or brown box. Accessories may be generic and not directly from the manufacturer. SURPRISINGLY SERIOUS SOUND - Don't let the small package fool you, each UE WONDERBOOM delivers massive, crisp, clear 360-degree sound so you can liven up the party. BLUETOOTH CONNECTIVITY - Connect to your UE WONDERBOOM using Bluetooth and keep on playing up to 100 feet (30M) away