This electric hot gel bag heats up within 5 to10 minutes after plugging it into a power socket. Once heated, it can retain warmth for about 1 to 2 hours, providing soothing heat therapy. It is a modern alternative to traditional hot water bags because it does not require filling water and is easy to use and carry.The Electric Heating Bag with Gel is a portable heating pad designed to provide quick warmth and relief from body pain. It contains a special gel inside that heats up when connected to electricity and stays warm for a long time, making it useful during winter or for muscle pain relief