Don't let achy knees stop you from doing the things you love. Tackle knee pain with this Revitive Circulation Booster - it uses OxyWave technology to increase your blood-flow. It drives nutrient-rich, oxygenated blood to your legs and feet to reduce swelling, cramping, and to maintain good vein health. The Knee Program strengthens your thigh muscles that support your knees, which can help calm osteoarthritis flare-ups or joint pain after surgery.    Good to know - Choose from 99 intensity levels to find the perfect setting to suit your needs - Its Dual Mode combines EMS and TENS technologies for targeted body pain management- The IsoRocker replicates heel-toe raises without added pressure of body weight to improve your ankle-joint movement- Soft silicone foot-pads make for great comfort during muscle stimulation- The battery offers up to 210 minutes of life, so you can have up to seven 30-minute sessions- It comes with a handy remote control, so you won't need to constantly bend down to change the intensity____________Please note: Revitive Medic Knee 5606-5574AQ-UK Circulation Booster should not be used by people who are:- Fitted with an electronic implant such as a pacemaker or AICD- Being treated for, or have the symptoms of, a deep vein thrombosis (DVT)- Pregnant