Voltage: 3.7 V
Fabric: Cotton, spandex
Heated Area: Front instep
Battery: two 3.7V rechargeable li-ion batteries
Heat Setting: 3 Levels Temperature Setting- High (Red), medium (Orange) and Low (Green).
1x (1) pair of socks
2x 3.7V li-ion batteries
1x AC charger
Electric Warm Heated Socks for Chronically Cold Feet
Health electric reachargeable battery heating warm socks with two 3.7V rechargeable li-ion batteries .
To keep you warm and comfortable all day ,perfect for hiking, hunting, ice fishing, outdoor in the cold weather .
1. Hand wash, soft wash.
2. The 3.7V batteries is not full or it is out of power，it need to charge the battery fully before use
3. The socks will heat up immediately. If you are using the ON/OFF version battery,switch ON (Press hard on the ON/OFF button) and it will be RED light
Ideal for all kinds of winter indoor outdoor sports activities:
Running&Walking the Dog,etc.