Specifications: Power: 3.7V/950mA lithium polymer battery Size: 150*95*170mm Ambient temperature "0-40 degrees Atmospheric pressure: 86KPA-106KPA Overview: Relieve eye fatigue, dry eyes, sinus pressure and headache. Maximum portability by rechargeable lithium battery Folded into a leather case black travel The eye massager features intelligent air pressure, vibration, massage and hot pressing massage techniques. This wireless digital eye massager is controlled by a microcomputer chip that rubs, presses, heats and massages the eye to relieve tired eyes. It has a built-in music player with pre-recorded natural sounds that can relax your brain and help you sleep better. There are 3 different massage modes for massage, which can relax the muscles around the eyes and improve blood circulation. Luxury: constant temperature hot compress + vibration massage + Bluetooth music + air pressure massage Privileges: Vibration massage + Bluetooth music + air pressure massage + two-level hot compress + two-level air pressure massage classic style: 1. Constant temperature hot compress 2. Bluetooth Music 3. Air pressure massage Luxury models: 1. Constant temperature hot compress 2. Vibration massage 3. Bluetooth music Exclusive money: 1. Vibration massage 2. Bluetooth Music 3. Second heat 4. Air pressure massage 5. Second-grade air pressure massage PearlWhiteandCoolblack=thermostaticheating+pneumaticmassage+vibrationmassage+Bluetoothmusic+3modes+regular15-minuteshutdown+1200mahlarge-capacitybattery Luxury=twomodesofheating+twomodesof6Dpneumaticmassage+twomulti-frequencyvibrationmassage+Bluetoothmusic+6modes+regular15-minuteshutdown+1200mahlarge-capacitybattery PrivilegeandWhitePrivilege=Luxury+Privilegepackaging Pinkluxury=Luxury+VoicePrompt+Privilegepackaging Whitebluetooth=threemodesofheating