Features: 1. Compact and Portable: With its smooth casing and ergonomic design that fits naturally in your hand, this hand warmer provides a comfortable and gentle touch. Its compact size and lightweight construction make it easy to carry and perfect for on-the-go use. It can be held with one hand or attached to a strap, making it convenient to carry in your travel bag or pocket. 2. Safe and Intelligent Heating: Equipped with an intelligent polymer chip, this USB charging hand warmer ensures the safety of its core components. It features automatic power-off protection when overheated, guaranteeing a safe heating experience. With just a press of a button, it rapidly heats up within seconds, providing instant warmth during cold winter days. 3. Adjustable Temperature Settings: The cartoon night light hand warmer offers temperature adjustment, allowing you to customize the warmth to your preference. Easily switch between temperature levels to find your desired comfort, ensuring even and soothing warmth for both hands. 4. Long-lasting Battery Life and Power Bank: The built-in large capacity battery provides extended usage time, ensuring all-day warmth. Additionally, our portable hand warmer can also be used as a power bank, conveniently charging your mobile devices while on the go. 5. Adorable Design with Night Light Function: Featuring a cute and adorable design, this electric hand warmer adds a touch of charm to your daily life. It doubles as a night light, creating a comforting ambiance to accompany you through chilly nights and soothe away fatigue. It serves as a perfect gift and winter companion, suitable for various settings such as studying, working, at home, outdoors, or while traveling. Specification: Origin: Mainland China Forest Series: Material: ABS+Silicone Size: about 112.5*73*40.5mm/4.43x2.87x1.59in Battery Capacity: 6000mAh Fat Star Man Series: Material: ABS+Silicone Size: about 103*78*50mm/4.05x3.07x1.97in Battery Capacity: 10000mAh