Bose Soundlink Mobile Travel Package Full-range sound from a small Bluetooth speaker, thanks to proprietary Bose technologies Rechargeable lithium-ion battery delivers more power and longer playing time than other rechargeable batteries, up to 8 hours Integrated cover protects the speaker and unfolds into a stand for instant playing anywhere Convenient controls for power and volume located on speaker itself; other functions controlled by your mobile phone or other Bluetooth device. No remote needed USB port for software updates ensures ongoing Bluetooth device compatibility