Incredible Sound: Powered by 2 6W stereo drivers and a passive radiator, DOSS E-go II Wireless Bluetooth speaker delivers a stunning sound with enhanced bass, tight mids, and crystal clear highs without distortion at any volume. Moreover, the speaker comes with a built-in microphone. IPX6 Waterproof, Dustproof, Crashproof: The waterproof outdoor Bluetooth speaker is made with sturdy fabric that protects it from water, sand, and dust when outdoors. The rugged silicone housing and port cover make the speaker shock-resistant and rugged. Long Playtime: Built-in a rechargeable Li-ion battery ensures up to 12 hours of playtime at 50% volume. This wireless speaker powers your adventure playlist all day or all night long. Bluetooth 4.1 Technology: Bluetooth 4.1 connects from up to 33 feet away, and is compatible with mobile phones, computers, and tablets. Also, DOSS E-go II supports 3.5mm AUX-in, TF card playback. Compact and Portable: Small size and lightweight design with a strap, thi