Electric Battery Heated Socks - Helps you spend a warm winter!Features: Material: Infrared battery electric heated socks for chronically cold feet.100% pure Cotton material,Stretcjy comfortable soft and full elastic,absorbent, elastic thickened, electric modules using. Health Care: This battery socks upgraded to use far infrared heating elements Which can be stimulate your blood circulation. Padded Heel: Padded reinforced heel & toe, and recessed heating element help focus heat in the toe to keep your feet from getting cold.Specifications: How to use: 1. Before using this product, please buy 6pcs of 1.5V AA batteries (alkaline batteries recommended), each dry cell box with three batteries. 2. After the battery is installed, put DC connector of heated socks into the DC port of dry cell box, pull the switch on the box to ON position, then the red LED light is on, socks begin to heat till 50, if feel overheated or keep, then pull the switch to OFF position. It can continue to work 4-5hours in the use of new brand of alkaline AA batteries. Voltage of Battery: 4.5V Lifetime of Battery: DisposableCautions: 1. do not allow children touch the battery. 2. If your body has any discomfort, take off socks immediately and go to a doctor, children and pregnant women consult doctor before use. 3. Please immediately stop using after wet, and use after dry 4. With good effect of shoes, can significantly enhance the effect of heating of the socks. 5. The following applies only for 4.5V heated socks:1 the battery box LED lights off, the battery is low, stop using it immediately, and then replace the battery. 2If you do not use the product for a long time, place keep in a cool and dry place. It is strictly prohibited to put used batteries in damp, water, fire, high temperature places.Package Included:1* Electric Heated Socks