The 8 mode EMS Electric herald Tens Machine Acupuncture Body Massage Digital Therapy Massager Muscle Stimulator Electrostimulator is an electronic muscle stimulation and massage device designed for general physiotherapy-style use. It typically offers multiple modes and intensity settings for a customizable massage experience. The device is generally intended to provide relaxation and general comfort to muscles after activity or during rest. It usually comes with pads or electrodes that attach to the body for use. As with any stimulation device, users should follow the included instructions and consult a healthcare professional if they have underlying health conditions.