【Fast Charging & Long-Lasting Warmth】The new 2025 winter hot water bottle provides long-lasting warmth with just 6-10 minutes of heat accumulation, lasting approximately 4-8 hours when used indoors and about 8-12 hours when used in a futon, ensuring a comfortable night's sleep. The large size provides high heat retention and a larger area to warm the body. Why not embrace the gentle warmth this winter with a hot water bottle? 【Safety Design & 6-Layer Protection】This rechargeable hot water bottle adopts a 6-layer explosion-proof design with high-quality insulation materials and high-strength PVC. It features overheat protection, short circuit protection, overcharge prevention, over-discharge protection, overvoltage protection, and overcurrent protection. The "water and electricity" are separated, eliminating concerns about water leakage and electrical leakage. With "pure water specifications," there's no need to worry about corrosion or strange odors. You can enjoy the winter enveloped in gentle warmth without worrying about safety. 【Soft-Touch Cover】The rechargeable hot water bottle adopts an ergonomic design that traps warmth with its insulated pocket structure, comfortably enveloping the entire palm. The fluffy, high-quality artificial rabbit fur insulation cover has a smooth and pleasant feel and blends naturally with any interior. Furthermore, it is resistant to pilling, and the cover is removable and washable, ensuring it's always clean. 【Energy Saving & Reusable】Compared to previous rechargeable hot water bottles, this product not only has a larger size but also significantly improved efficiency. The electricity cost per charge is only about 2.5 yen, making it very economical. The reusable eco-design allows you to feel warm and cozy anytime. It provides easy and comfortable warmth and can be used without worrying about electricity bills, allowing the whole family to enjoy a richer and more comfortable winter life. 【Versatile Use & Winter Gift】This electric hot water bottle requires no preparation of hot water and is lightweight, making it easy to carry to any place you want to warm up, such as the bedroom, living room, workplace, car, or outdoor camping. It's easy to use for women, children, and the elderly, and it can be used as a warmer for futons or as a hand warmer on your lap. Furthermore, with its simple and high-quality design, it looks and feels great, making it a perfect winter gift.