Massaging your pet with the infrared massager can help to increase blood flow and cell generation. It can also help to soothe aching joints and muscles and relieve the tension, stiffness and pain associated with arthritis. Massage can also speed up healing and improve flexibility. Measures 5-3/4-inch length by 5.13-inch width by 10-3/4-inch height. Two heated massage heads. Rechargeable battery and charger included. Three function switch allows for separate heat and massage control. Soothes sore muscles,arthritis, hip dysplasia and other age related discomforts.