The warmer is one of the new healthy and keeping warm product.It can ease pains such as arthritic, toothache, arthritis, headache, back and neck pain, chilblain. It has big difference from normal warmer,It takes 8-12 minutes charged the warmer and it can keep warm for 2-4 hours. Double-safety. A double temperature controller is incorporated when temperature is reaching about 60-70 degrees, it will automatically switch off. This product has been authenticated as qualified products through an inspection by the National Product Quality Inspection Center and obtained certificates, It also pass CE & ROHS approved. Designs:multi color pattern. Material: PVC + Electronic Components Rated voltage 220V Rated frequency 50Hz Usage instructions Insert the wire into the bottle & socket on the other end to the electric plug Heat for 8-12 minutes only depending on the requirement Unplug & then use it for heating & massaging body parts or keep inside your quilt to make it hot. Contents : 1 Heating Pouch 1 Power Adapter for Heating the Pouch The medical kit at your home is incomplete without a heating pad. Get this Vkare heating pad and be prepared to treat muscle pulls, sprains and joint aches. Fast Charging This heating pad charges in 8 to 12 minutes and quickly gets ready to treat the pain. Portable Easy to carry, this heating pad can be carried in a bag while travelling. Sturdy Design The shock-proof body of the heating pad makes it sturdy and durable. Easy to Use This heating pad does not require a water filling and is easy to use. Permanent Prefilled Solution This heating pad is filled with a solution which eliminates the need of filling water in it before every use. Easy-to-Use Charger The portable charger heats the warmer in just 8-12 minutes. The warmer can be used for 2 to 4 hours once charged. Auto-Warm Function When the warmer attains the adequate temperature, it automatically disconnects from the power. Warning : Do not use the bag during charging.