This portable cordless circulation booster is a must have for all travellers. It helps to reinvigorate tired and cold feet, improve blood flow in your lower legs, reduce swelling and lift your spirits. Ideal for long flights to help reduce the risk of DVT and makes the long hours of sitting healthier and more enjoyable. Easy to use - the device simply fastens around your foot or leg and delivers a pleasant massage with adjustable intensities and pressures. No unwieldy controllers or tubes. Not meant for people with a pacemaker or AICD. Requires 2 'AA' batteries (not included).