Autocastle Rechargeable Electric Heated Socks Men Women Battery Powered Heated Socks Kit Winter Warm Thermal Heated Socks for Chronically Cold Feet Novelty Sports Outdoors Camping Hiking Socks Pink

3.7V Heated Socks Voltage:3.7V Material:Cotton Polyester Spandex Heated Area:Front Instep Package Included: 1*pair of socks 1*AC charger 2*Li-ion Batteries 1*Using Manual 3 Levels Temperature Setting: Red Light:100% Heat Orange Light:75% Heat Green Light:50% Heat. Temperature Switch and Lasting Hours: Red?3-3.5 Hours Orange:4.5-5 Hours Green:6-6.5 Hour Note: Hand Wash,Soft Wash. The 3.7V Batteries May Not Come Full or It is Out of Power,It Need to Be Fully Cahrged Before Using. It Need to Charge the Batteries about 12 Hours to activate for the first time,Then 5 Hours Each Time. Please Charged the both batteries at the same Time.If the batteies are fully charged,the charger light turns red to green,not the battery light.