Glyduny Heating Pads, Period Cramp Massager Portable Cordless Heating Pad with 6 Heat Levels and 6 Massage Modes for Back Pain Relief Menstrual Heating Pad (White)

Specification Net size: 18*9*3cm / 7.86*3.54*1.18 inch Net weight: 200g (±10g) Power supply: 5V/1A Input power: 3W Heating temperature: 40℃/104°F ,45℃/113F,50℃/122°F,55℃/131°F, 60°C/140°F,65℃/149°F Use time: 3 hours (30 minutes timer) Charging time: 3 hours Elastic belt: Suir for 24"-57" waistine Best working environment: Ambient temperature: 5°C-40°C/41°F-104°F Atmospheric pressure: 86-106kpa Relative humidity: 80% How to use 1.Before using, please use 5V 1A charger (not included) to charge it, can also use power bank, PC's USB port to charge it, the LED indicator flashes when charging, the LED indicator is always on when full. 2.The device will not work during the charging process. If the device cannot be turned on or the LED light is flashing, it means the power is low, please charge the device in time. 3.The charging duration will be 3 hours. Disconnect the power adapter after charging is completed. 4.One button start, long press shutdown, short press to switch.