You've got an ergonomic workspace but after several pressure-filled hours in your chair you still feel tense at the end of the workday. Not anymore! With the USB Massage Ball you can keep yourself relaxed with a soothing massage anytime. Just plug the Massage Ball into an available USB port, click it on and massage your tension away. The ball provides a surprisingly strong vibration and the textured surface helps you reach deep into tired muscles. Finally, a really great use for USB! Features & Specifications: Soothe tense muscles. Increase your productivity. Look forward to going to work. Patented worldwide. Ultra flexible 6-foot cable lets you reach all your tense muscles.