6-speed speed control design to meet different massage needs The massager can activate the muscles, stimulate blood flow, greatly reduce muscle recovery time, relieve pain and relax from head to toe 4 types of massage heads can be switched, custom soft massage heads provide a comfortable massage experience while reducing bone damage Features: Silicone handle is better to grip, prevent slips and falls from hand Choose different speed based on the muscle group and your own preference Offers four customized massager heads, provides a relaxing massage experience and reduces bone damage Specification: Color: Black Input: 110-240V 50/60HZ Rated voltage: DC8.4V Rated power: 24W Endurance: 2-3 hours Battery capacity: 2000mA Specification: US Plug Package Includes: 1 x Massager 4 x Massage head 1 x Charger