Bose SoundLink III Bluetooth Speaker with Soft Cover Bundle (Gray) This Bundle contains 2 items: Bose SoundLink Bluetooth Mobile Speaker III & Bose Gray Cover Bose technologies help reproduce music with the fullness, clarity and depth you might not expect from a mobile Bluetooth speaker this size. Connects wirelessly to your smartphone, tablet or other Bluetooth device. The lithium-ion battery lets you share your music for up to 14 hours without recharging. Curved edges and thin profile make it easy to grab and slip into a bag or backpack, so you can take your music wherever you go.