Excellent IPX7 Speaker that I have never seen on special before. Interestingly UMART now stocks them for $259, previously JB HiFi were the only distributor for $294.
Good Review here http://au.pcmag.com/braven-brv-x/11788/review/braven-brv-x
the Braven BRV-X is worth every penny. Its audio is intense, its design is meant to withstand some nasty weather and minor abuse, and the Indoor/Outdoor switch is truly useful. Its thoughtful design and strong performance easily earn it our Editors' Choice award…
BRAVEN BRV-X
Designed for outdoor enthusiasts, the Braven BRV-X booms with 12 hours of music playtime, which is perfect for rocky canyons, powdered slopes, raging rapids, sandy dunes or even backyard barbecues. The BRV-X is designed with an IPX7 certified waterproof, shock absorbent, portable body and features a powerful 5200mAh power bank to charge external devices. Customize your listening experience for any environment by choosing indoor or outdoor mode. For an immersive left and right stereo experience, pair two Braven BRV-X speakers together using TrueWireless.
IPX7 Waterproof
With an IPX7 certified waterproof rating, the BRV-X is protected from rainfall, splashing and can be fully submersed in water one meter deep for up to 30 minutes. Its rugged exterior and impact-resistant frame make it ready for any adventure.
Dual Audio Modes
Optimized playback modes can be adjusted for indoor or outdoor listening environments. Outdoor mode provides bright, long-range audio, while indoor mode creates rich sound with deep, full bass.
TrueWireless Technology
Take your outdoor listening experience further with the BRV-X Speaker's ability to wirelessly pair to a second speaker. Once paired, rock out in left and right stereo sound.
Seems ok, but I'd be shopping for a UE mega boom instead. It comes down to whether you prefer a speaker that can charge itself on USB (UE) or one that can charge other stuff (braven).