Bose Soundlink Mobile Travel Package Full-range sound from a small Bluetooth speaker, thanks to proprietary Bose technologies Bluetooth technology enables high-quality, wireless stereo performance from your smartphone or other source to the SoundLink speaker Compact size lets you take the speaker anywhere; it's small and lightweight enough to carry in one hand or place in a backpack or travel bag Rechargeable lithium-ion battery delivers more power and longer playing time than other rechargeable batteries  up to 8 hours USB port for software updates ensures ongoing Bluetooth device compatibility