These Electro Pads by Ouch! help you relax after a busy day. The set contains four self-adhesive, oval pads. The remote control has eight different modes, ten intensity settings, and ten speeds. This set can be used specially for: - Relaxing tired shoulders - Massages - Restoration or improvement of blood flow - Reducing pain in muscles and nerves - Burning fat Use this set every day, everywhere! Refrain from using the following situations: Those people who suffer from any of the following diseases or are showing any symptoms should not use the electro massager set for low-frequency treatment. Heart disease, users of pacemakers, high fever, acute (painful) diseases, abnormal blood pressure, menstruation, pregnancy or after giving birth, on or around cuts and / or skin diseases, malignant tumors, when the body is wet from bathing / showering or sweating, tuberculous diseases, people receiving medical treatment should consult with physician prion to using the massager. - Includes 2 x AAA batteries