Bose SoundLink III Portable Wireless Bluetooth Speaker System

Connects wirelessly to your smartphone, tablet or other Bluetooth device Sound performance unlike any other mobile speaker this size Curved edges and thin profile for easy grab-and-go portability Silicone button panel protects from dirt and dust Rechargeable battery plays up to 14 hours   The built-in rechargeable battery provides approximately 14 hours of playing time; a wall charger is included with the speaker. This speaker also has a micro-USB interface, which is used to update the speaker's software for ongoing Bluetooth device compatibility. At 10.1" wide and with a weight of 3.03 lb, the Bose SoundLink III was designed with portability in mind.