Experience an intense yet comfortable massage when your muscles start to ache, with the Trister Rechargeable Cold & Hot Beauty Massager. This handy massager features three different speeds of vibrating massage to help relax tense, fatigued muscles, and its flexible design makes it easy to target your sore spots. There is a heat function for maximum relief, specially designed to help increase circulation for muscle comfort and relaxation. It also features a cooling function that helps reduce joint swelling and muscle inflammation.