Kinetik Dual Channel Tens Pain Reliever Kinetik TENS Digital Pain Relievers are designed as a safe & easy way of relieving pain at home. They work by passing harmless electrical signals into the body through pads to block the body's pain signals. This stimulates the body to produce its own pain relieving chemicals called endorphins. Our TENS Digital Pain Reliever series can be safely used in conjunction with pain relief medication.