COST SAVING: With ever-increasing energy bills you can save money using this rechargeable hot water bottle as it costs significantly less than boiling a kettle and the heat retention is far superior to traditional hot water bottles which do not retain heat for more than 1 hour. SIMPLE TO USE: Simply slide the charging cover to the side, connect the charging cradle and plug it into the mains. After around 10-15 minutes your Electric Hot Water Bottle will have reached a temperature of 60-70°C, perfect for warming up your bed on a cold winter night. TARGETED PAIN RELIEF: The Rechargeable Hot Water bottle provides up to 5hrs of targeted warmth and heat therapy on a single 15 minute charge. Alleviating pain, relieving cramps, joint or muscle pains while improving blood circulation for added comfort. SOFT AND COMFORTABLE: The StayWarm Hot Water Bottle has a soft fleece cover that retains heat while keeping you comfortable for up to 5 hours and shields the skin from direct heat. SAFE TO USE: Permanently Sealed with water, so there is no risk of scalding. The electric and pre-filled water components are completely separated from each other ensuring the Hot Water Bottle is completely safe to use.