【Large Hot Water Bottle! Rapid Charging & Long-Lasting Warmth】Charging is complete in just 15 minutes. The hot water bottle provides warmth for approximately 9-15 hours when placed inside a futon, and for about 5-8 hours when used on the stomach or lower back, offering a gentle and comfortable warmth for a long time. When you're relaxing on the sofa, placing it on your stomach or at your feet feels like a fluffy pet is snuggling up to you. No more cold nights when you sleep! The large hot water bottle gently fits where you want to warm up, such as your hands and feet, and your stomach and lower back, providing a gentle and soothing warmth for relaxation. 【Large Hot Water Bottle! Insulated Pocket Design & Cover with Excellent Heat Retention】 Our hot water bottle features an insulated pocket design that prevents heat from escaping. It warms your entire palm, conforming to the principles of ergonomics. The fluffy and adorable insulated cover is also a key feature. The cover is removable and washable, so you can always keep it clean. The cover is made of a material that resists pilling. 【Large Hot Water Bottle! High-Quality Materials, 6-Layer Explosion-Proof Design, Automatic Shut-Off】 Our hot water bottle features a 6-layer explosion-proof design, a water and electricity separation design, and uses non-corrosive water. The over-temperature protection device is made with dual protection chips, and the hot water bottle automatically shuts off when the temperature exceeds 75 degrees. 【Cordless, Usable Anywhere, Excellent Healing Effect, Perfect for Gifts】 The hot water bottle itself has a soft, squishy feel and adheres closely to your body. Enjoy a comfortable winter life with this rechargeable, eco-friendly hot water bottle that provides warmth repeatedly. Use it as a warmer to heat your futon before bed, or as a hand warmer on your lap, gently warming your body. A strong ally for women who feel the cold, this reusable eco-friendly hot water bottle. When used in a futon at night, the warmth lasts until morning. #HotWaterBottle