@shesninaalexander: Replying to @Sweeetmelissssaaa the contact pads are not adjustable @MIRATOKI #tensunit #neckpain #shouldermassage #neckmassager #posturecorrection TENS = nerves/pain. It uses gentle electrical stimulation mainly to reduce pain signals. You usually feel tingling, but the muscle doesn’t need to visibly contract. EMS = muscles. It stimulates the motor nerves so the muscle actually contracts and releases repeatedly. This can help activate, strengthen, or temporarily loosen a tense muscle.