The JML Zen Feet Electric Foot Massager is best for relaxing your tired, aching feet after a long day. Using Electric Muscle Stimulation (EMS) technology, it mimics natural muscle contractions to help stimulate muscles and support healthy circulation. With eight vibration modes, you can choose anything from a gentle pulse to a deeper kneading-style massage. And its 19 intensity levels let you dial in exactly how much stimulation you want for your feet.Cordless designUSB rechargeableIncludes a remote control and charging cableImportant: Not suitable for users with a pacemaker or other implanted electronic medical device. Do not use during pregnancy, if you have epilepsy, a diagnosed heart condition, suspected or confirmed deep-vein thrombosis, or serious circulation problems unless a healthcare professional has confirmed that it is safe for you. Please read the full safety information before use.