Product Title: Electric Foot Warmer Socks
Free size fit from 40-44
3.7v 2200mah Lithium-polymer battery
40-50 °C (104 -140 °F )
Hi, Medium, Low 3 Setting
About 3-6 hours
Health electric rechargeable 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 .
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
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