If you're going to brag that you've made the world's best outdoor speaker, you've gotta be able to back it up. Braven BRV-X sure does, and then some. Mega-rugged, it sports an IPK5 water resistant rating and shockproof rubber shell. Its specs are just as epic, 12-hours of battery and stereo sound with TrueWirelss meaning two Braven BRV-X speakers can be paired at once.