Wherever adventure takes you, wirelessly stream high-quality sound from your smartphone or tablet with the Coleman? OneSource? Bluetooth? Wireless Speaker. It is part of a system that powers outdoor gear with rechargeable batteries that can be used interchangeably in a range of compatible devices, including lanterns, flashlights, wireless speakers, air pumps, camping tents, and shelters (sold separately). The lithium-ion battery is conveniently rechargeable from wall outlets, vehicles, universal power packs, or other OneSource batteries with the included USB cord. Bonus? The OneSource battery helps eliminate the need for multiple power sources by letting you charge external devices, like smartphones or tablets (not included), through a USB port, even while powering gear. One system, one source, power anywhere!