Gymstick Massage Gun is a great tool for massage and treatment of tension in the neck, back and limbs. The massage gun relaxes the muscles and speeds up recovery after training. With five different massage heads and the powerful vibration provided by the Massage Gun, you can relieve muscle tension and recovery. Massage stimulates blood circulation and metabolism in the massage area.Technical information:- 2000 mAh / 16.8V battery - Battery life 3.5 - 5h - Carbon brushless motor - 20W motor power - 8mm stroke interval - 3 different massage speeds (1200rpm - 2000rpm and 2800rpm) - 5 different massage heads - Material: abs, steel, silicone, eva - Package includes: Storage briefcase, instruction and charger - Warranty 1 year