What is the Hyperice Vyper? The Hyperice Vyper is a revolutionary new concept from the most successful cryotherapy manufacturer on the market today. The Vyper is a foam roller for the 21st century workout warrior & has already been lauded by athletes such as NFL running back Adrian Peterson & NBA Allstar Blake Griffin. The Vyper, which started its life as a kickstarter campaign, is exclusive to Physio Room.com & possibly the most unique foam roller on the market today. The Vyper is a truly unique product which works primary like a foam roller but with the added benefit of providing vibration led massage to the area due to be massaged. This makes the Vyper not only exceptionally versatile but exceptionally powerful too. How does it work? Using a fully rechargeable high power lithium battery, the Vyper is the most advanced recovery device on the market today. Delivering vibration frequencies at three power speeds, the Vyper combines the forces of compression with vibration to bring forth an exceptionally powerful sports recovery tool. Designed to be both user & economically friendly, the Vyper features a polypropylene shell which is air injected for comfort to offer support to the body during use. Ideal for myofascial release & trigger point massage, the Vyper improves blood circulation, minimises recovery speed & promotes suppleness in the working muscles so that they can be used over & again. Main features Circumference: 15cm Length: 29cm Weight: 1.6kg Running time: 2 hours on lvel 3 Automatic switch off feature after 10 minutes Wireless & rechargeable German engineered technology Instruction leaflet in French, German, & English Three speed power output Portable 16.8V lithium ion battery User & environmentally friendly