Epulse is a pioneer of modern health and wellness devices, our devices are targeted to deliver non-invasive pain relief solutions, That works great in office settings or on the go! DRUG-FREE DIGITAL PAIN RELIEF ePulse TENS and EMS devices are advanced neurostimulators used for temporary relief of pain associated with sore and aching muscles in the shoulder, waist, back, neck, upper extremities (arm), and lower extremities (leg) due to strain from exercise or normal household work activities. It is intended to be used to stimulate healthy muscles in order to improve and facilitate muscle performance.