3-Speed Heated Hand Warmer With Digital Display, Explosion-Proof Safety Protection

1. PI Carbon Crystal Heating Tech, 3s Fast Heating & Multi-directional Heating：This hand warmer features an industry-first front/back/both sides heating design with advanced PI carbon crystal heating technology. It emits infrared light waves matching human body wavelength, realizing 3-second rapid heating; the heat penetrates skin easily for efficient, body-adaptive warmth—ideal for instant hand/abdomen heating needs. 2. Five-fold Safety Protection, Explosion-proof & Overload-proof：Equipped with over-current, over-charge, over-voltage, short-circuit protection and a thermal balance central control chip, plus Tesla explosion-proof battery cells, carbon crystal heating sheets and aviation aluminum heat conduction layer. Passed 100+ safety tests, it ensures zero safety hazards for daily use. 3. 3-speed Temperature Control with Digital Display, 40℃/50℃/60℃ Adjustable：Supports 40℃ (indoor hand warming), 50℃ (outdoor cold protection), 60℃ (abdomen warming); the digital display screen shows real-time temperature, allowing precise adjustment for home, office, outdoor travel scenarios. 4. Portable Hand Warmer & Power Bank 2-in-1, Airplane-approved：Weighs only 240g with dimensions 1084575mm—one-hand grip, pocket-sized and compliant with airline carry-on rules. Built-in large-capacity lithium-ion battery with USB output, it works as a power bank to charge phones/tablets on the go. 5. Long Battery Life & Multi-color Options：Charges fully in 5±1 hours, with working time of 2.5-12.5 hours (varies by temperature gear). Available in milk white/pink/blackish green/black—suits daily commuting, camping, skiing and other indoor/outdoor activities.