SPECIFICATIONS Material: AcrylicPower Source: Rechargeable BatteryHigh-concerned Chemical: NoneSize: 13*2.2*2.2cmWorking Principle: ION+Working Principle: ION-Working Principle: EMSWorking Principle: WARMWorking Principle: vibration massageCertification: CECertification: FCCCertification: RoHSManufacturing Process: Hand MadeFunction: Anti-AcneFunction: WhiteningNumber of Pieces: One UnitModel Number: LM-2201Type: Eyes massagerProduct Name: Eye Beauty Devicefeature 01: eyes massager machine heat and coolfeature 02: ems eye massager tighten skinfeature 03: eye massage instrumentfeature 04: Eyes Care ToolsChoice: yes semi_Choice: yes