• Fabric: Modal core-spun yarn improves your comfort, adding mink hair to make your feet feel soft
• Support water washing and machine washing: The high-quality heating element has been tested for tens of thousands of times, safe and waterproof, and can withstand water washing
• How to use: The heated battery socks are easy to use. Simply insert batteries
• Suitable occasion: outdoor skiing ,cycling, fishing etc. 
• Working voltage / current: The voltage / current of socks are DC3.7 - 5.0V, 950mA - 1250mA

Specifications:

• Gender: unisex
• Power supply: power bank (not included)
• Working voltage: DC3.7 ~ 5.0V
• Working current: 950mA ~ 1250mA
• Temperature: 45 ~ 60℃