PU Electric Vibrating Foam Roller with USB Charging Color: Customized colorSpeed:Vibration Frequency for 5 speed settingsLED LED light display for speedfunction10 minute automatic shut off featureTouch Button OR Push Buttonuse USB charging (Micro USB charge cable)Charge time:2 hours1 level speed Vibration time: over 200 minutes5 level speed Vibration time:over 80 minutesBattery power:2000mah lithium batteryCertificationCE RohsOtherInput:100-240V~50/60HZwhite box:330x98x98mm (one piece per white box)Outer carton: 340x295x305mm (nine pieces per ourer carton)Product meas: diameter 88mm , length 313mmN.W./G.W.: 6.73/8.37 kgs20FT/40FT/40H: 7488/15417/ 17388pcsMaterialPU