Innovative 2-in-1 Design: This set features two symmetrical hand warmers that magnetically combine into a palm-sized heater for 360-degree warmth, or can be used separately—one per hand or shared. The pocket-friendly design is ideal for travel, hunting, golf, hiking, camping, skiing, and other outdoor activities, offering versatile heating options anytime. Intelligent Temperature Control: Integrated with an AI temperature sensor chip, it provides 3 precise heat levels with real-time feedback and guidance. Continuously analyzing hand-to-device temperature, it ensures optimal comfort and safe heating up to 55°C, backed by multiple safety certifications for reliable quality. Ultra-Portable Build: Measuring just 3.36cm thick overall and weighing 184g, each compact unit (palm-sized) houses a 2500mAh battery. Easily fits into gloves, pockets, or purses for convenient on-the-go warmth, making it perfect for daily commutes or outdoor adventures. Fast & Long-Lasting Heat: Delivers instant warmth in 3 seconds with 3 adjustable settings (up to 55°C), providing 6-12 hours of continuous heating. Ideal for keeping hands warm in cold winters and relieving pain from conditions like Raynaud's during work, classes, or activities. Ideal Winter Gift: A thoughtful present for Thanksgiving, Christmas, New Year, birthdays, or Valentine's Day. Keeps hands warm during office work, classes, camping, hunting, or any outdoor winter activity, making it a perfect gift for family and friends in cold commutes or recreation.