Specification: Product name: heat ; Working Frequency:44 mw; charging time:1-2h; Rated voltage:3.7v; Package size:183*154*46mm; Function:Improve under-eye wrinkles,Smooth crow's feet ,Lighten dark circles; Charging way:USB cable portable charging; Battery capacity:80 mAh; Type:Multi-Function Beauty Equipment; Feature : 1.Eye Care Therapy EMS Massager with Gel Patch for Under Eye Wrinkle Remover 2.Electric Eye Patch Reduce Wrinkles Puffiness Dark Circles Eye Massager Device 3.EMS current will direct to the dermis through -current to promote collagen production, lymph detoxification, which can relieve from eye pressure, eye tiredness and eye fatigue with extreme relaxing enjoyment. 4.Electrical muscle stimulation eye patch to target the orbital muscles and strengthen your eye area in just 5 minutes for an instantly lifted, more youthful and rejuvenated eyes;