Introductions: Stay warm and comfortable during your outdoor adventures with this innovative rectangular heated sleeping bag. Designed for versatility, it features a built-in electronic heating system powered by USB, allowing you to connect it easily to power banks or other USB power sources. The outer shell is crafted from high-quality, durable 190T polyester, making it waterproof and tough enough to withstand years of regular use while remaining soft against the skin. Whether you are camping in the mountains, relaxing at the beach, or needing a quick nap at the office, this bag ensures a restful experience. It includes a smooth zipper secured with velcro and an adjustable drawstring hood to trap heat effectively. Despite its advanced heating capabilities, the bag remains ultralight and portable, offering the perfect balance of warmth and convenience for hiking, backpacking, and RV travel. Features: 1. Multi-Zone Electronic Heating: Equipped with a 4-piece heating pad 3D system, this sleeping bag targets key areas including the shoulder, chest, hip, and feet. The system is compatible with various USB power supplies such as cellphone chargers, power banks, and car jump starters, providing consistent warmth where you need it most. 2. Adjustable Temperature Control: This heated sleeping bag offers three distinct levels of heating to suit your comfort needs. You can easily adjust the settings to warm your body during chilly nights or lower the temperature mode if you feel too hot, making it suitable for use across all seasons. 3. Durable and Waterproof Material: Constructed with a high-quality 190T polyester shell, this bag is designed to stand up to years of rugged outdoor use. The waterproof exterior protects against moisture and damp conditions, ensuring you stay dry and comfortable whether you are in a tent or sleeping under the stars. 4. Secure Heat Retention Design: Features a smooth zipper secured with a velcro strap and a drawstring hood for precise adjustment. By tugging the drawstrings, you can bring the headrest closer to your body, sealing in warmth and providing extra insulation against cold air during lower temperatures. 5. Ultralight and Versatile Usage: Weighing only 3.3 lbs, this sleeping bag is easy to carry and perfect for backpacking, hiking, and camping. Its versatile design makes it an excellent choice for sleeping at home, in the office, backyard, car, or RV, balancing high performance with lightweight materials. Specifications: 1. Dimensions: (82.7 x 33.5) in / (210 x 85) cm 2. Weight: 3.3 lbs 3. Temperature Range: 14-50 °F Package Includes: 1 x Sleeping Bag