Product name:Electric heating pad Material: Spunlace Nonwoven Heating Element: Electric heating fiber (complex fiber , carbon fiber, heating wire,graphene are available) Working temperature: 42 ℃ to 55℃ Temperature controller:LED display , 3-level adjustable controller with L,M,H) Battery type :Lithium polymer battery Voltage: DC7.4V Capacity: 2200mAh Output power: 5W Size:S,M,L,XL,2XL Certification:CE, FCC, ROHS Fit for making electric heated gloves ect.,