Features: 1. Safe and Durable Materials: This electric hand warmer is made with PC high-temperature resistant material, ABS fire-resistant material, ensuring multiple levels of high-temperature flame resistance for safe heating. It provides peace of mind while keeping your hands warm. 2. Intelligent Temperature Control: Equipped with a high-temperature resistant and explosion-proof chip, this USB charging hand warmer features intelligent temperature control for long-lasting warmth. It effectively maintains a consistent and comfortable temperature throughout the winter, giving you a worry-free experience. 3. Smooth and Comfortable Design: The portable hand warmer's smooth casing provides a skin-like touch, while its ergonomic design fits naturally along the curves of your hand. It offers a comfortable grip and a gentle touch that feels soothing to hold. 4. Rapid Heating: With just a press of the switch, this long lasting hand warmer quickly heats up. Experience instant warmth during cold winter days, providing immediate relief from chilly temperatures. 5. Night Light and Portable: The Upgraded# hand warmer features a seven-color gradient breathing night light, adding a touch of ambiance to your day and night. It is also perfect for on-the-go use. etc. Description: Material: ABS+PC Size: about 96*75*46mm/3.77x2.95x1.81in Battery Capacity: 1200mAh Rated Power: 5-10W Rated Voltage: 3.7V/1A Style: Basic, Upgraded(additional night light function) Color: as shown Temperature: 35-45, 45-55, 55-60 (adjustable in three gears) Package Includes: 1 x Hand Warmer 1 x USB Cable 1 x Hanging Rope Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement.