Features of the Pulseroll Vibrating Single Massage Ball- New improved design and motor- Ultra-portable relief, wherever life takes you- 4 vibration levels- Average battery life 3 hours- Remote control to change vibration speed- 1 Year warrantyDiscover the benefits of using Pulseroll\'s next-generation training and recovery technology- 3-hour rechargeable battery- Portable and lightweight- Reduce next day soreness- Increase blood flow- Save money on physio visits- Reduce muscular pain- 4 vibration speed settings- Approved by physios and pro athletes- Rapid training recovery- Flush away lactic acid- Release knots and tension- Faster recovery from injury