It seems as though good ol' fashioned workouts aren't good enough by the looks of the BodyVib Vibrating Dumbbells. Although these exercise accessories might make you think about the suggestive Shake Weight, it actually does a lot of the work for you. For instance, instead of jerking it up and down, the BodyVib Vibrating Dumbbells vibrate as you perform traditional weight lifting exercises.
Essentially hi-tech weights, the BodyVib Vibrating Dumbbells vibrate at 36Hz with an amplitude of 1.2mm, allowing it to intensify your training by up to 50%. They do so by making your muscles quickly contract and relax in response, thereby burning more energy in a shorter time.
The BodyVib Vibrating Dumbbells last about two and a half hours after a 30 to 50 minute charge.