Electric pillow heater keeps you warm longer than ordinary heating pads perfect for indoor and outdoor uses either you are travelling or watching movies electric heating pillow is the new age replacement for traditional hot water bottle this may also helps soothe arthritis menstrual cramps lower and upper back pain sore muscles electric adopter has function auto shut off built in prevents overheating just 5minutes of electric charge pre sealed water stays warm from 60 degrees celsius to 70 degrees celsius up to 5 hours