- NTC Temperature Control: This electric hand warmer features advanced NTC temperature control chips that minimize heat loss while maintaining a consistent temperature. With a steady 55°C heat, it effectively warms the target area, providing instant relief from pain and discomfort. - Foldable Design: Designed for convenience, this hand warmer has a practical button mechanism that allows it to be easily folded. When buttoned up, it serves as a hand warmer, and when unbuttoned, it transforms into a heating pad for versatile use. - USB Powered: Enjoy warmth anytime, anywhere with the USB-powered feature. Easily connect this hand warmer to a power bank, laptop USB port, or mobile phone charger, making it perfect for on-the-go warmth. - Versatile Applications: The electric hand warmer is ideal for providing soothing hot compress effects to relieve muscle soreness, arthritis, neck stiffness, cramps, lower back pain, and menstrual discomfort. It ensures you stay warm during cold winter days. - Practical Use Scenarios: 1. Use it at home while relaxing on the couch to alleviate lower back pain. 2. Take it to the office to keep your hands warm during chilly work days. 3. Use it during outdoor activities like camping or hiking to stay comfortable and relieve muscle tension. With its effective heating capabilities, convenient design, and versatile applications, this electric hand warmer is a practical solution for anyone seeking warmth and relief from pain.