JumpSnap

Jumpsnap is a rope-less, electronic jump rope with a calorie tracker, jump counter, timer, and user profile to track progress. To use it, hold the two portable rods, and start jumping as if it was a grade school physical fitness test. It could be useful for a more continuous, less tangled workout, while the jump tracker motivates users to beat previous high scores. It retails for about $50 after shipping.

Credit: JumpSnap