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.