Specifications:

• Gender: MEN
• Weight: about 400g
• Sport Type: Skiing
• Size: Free size (socks are elastic, can stretch)
• Plug specifications: US regulations
• Name: 3-7 hours button electric socks
• Hose Height: Stockings
• Heating Part: Heat on the Back of The Toe
• Finger-separated: No
• Color: Black
• Charging time: The battery takes about 4-6 hours to fill
• Battery: 3.7V 2200MAH lithium battery