Features:
Powered by a pair of 3.7V rechargeable Li-ion batteries (Does not contain), the heat energy of the product is 35-55 ℃.
3 Adjustable Heated Levels: 3 levels setting heat controller to adjust your favorite temperature according to different temperature demands.
Socks and rechargeable batteries are sold separately. Please buy them according to your needs.
Specifications:
Battery Voltage: 3.7 V-2.0A
Capacity:2200 MaH
Quantity: 2
Package Size: 10x5x3cm
Package Weight: 135g
Package List:
2 x rechargeable Li-ion batteries
1x usb