Morning,
http://www.amazon.co.uk/Waterproof-Shockproof-Wireless-Bluetooth-Smartphone...
These things are great I've been using mine for months now with absolutely no problems whatsoever.
The battery life if good , there fully waterproof and the are extremely robust and LOUD!
For all of you that love a nice bit of loud rock or rave music while your out at the crag.
Only joking
OM