What's a WOO you might ask? This device is basically a jump sensor you mount on your board. It records your jump height, max airtime, session duration and landing G-force. A great tool for those who want feedback to improve their jump height, but also a good reality check. It certainly brought my mates and I down to earth by showing us how high or low were really jumping :)
seems in buying a gadget that does nothing except stroke your ego you may have been ripped off