5.Scratch & Infrared Heat massage + UV Disinfection function. 6.Three scratch speed adjustable 7.Quickly Press two time to Open/Close infrared heat. 8.When head massager put back to charge button plastic, UV disinfection AUTO working 3mins. 9.15mins timer function 10.Silicone non slip strap easy carry 11.Wireless design: built-in li-battery 12.Skin-friendly silicone material 13.charge for 3 hours, use for 1 hour