The Cell-U-Stop deploys the same electro-muscle stimulation technology used by physical therapists and chiropractors to contract muscles and relieve pent-up tension. Soft adhesive gel pads gently grip sore tendons, providing 20 automatic minutes of soul-soothing treatment. Swap between the three different pulse modes of this compact wireless device, which offers an excellent way to relieve stress at home, in the office, or before a cage match.