4 Speed Vibrating Foam Roller Muscle Recovery Deep Tissue

Package Included: 1x Foam Roller Massage 1x Charger 1x User Manual Specification: Product name:Foam Roller Massage Main material:EPP(Expanded polypropylene) Color:black Size:15x15x31cm/5.9"x5.9"x12.2" Package size:15x15x36cm Power supply:rechargeable type, battery capacity 7.4V, 2200mAh Plug:EU plug Voltage:110-240V Charging time:about 3.5 hours Charge an discharge possible return:about 360 times Battery duration:180min(longest)/50min(shortest) Fixed use time:about 10min Vibration return: -1:2300 back/min -2:2700 back/min -3:3100 back/min -4:3700 back/min Use ambient temperature:10~40