【2 Packs Hand Warmers】Our hand warmers rechargeable are 2-in-1 and ergonomically designed for style and comfort. The pocketable design makes them easy to carry and perfect for camping, fishing, hunting, skiing and other outdoor activities, making them an essential companion for your winter travels and various activities. | 【2s Instant Heat & 3 Heat Levels】Say goodbye to cold fingers and long wait times. Featuring a premium chip control system, these electric hot pockets hand warmers deliver heat up to 130°F in just 2 seconds. With 3 temperature levels for stable, adjustable, and precise comfort heating. Give you quick relief from the cold and experience the healing power of heat therapy. | 【20 Hours of Continuous Warmth】Upgraded 2 Packs of hand warmers can last for over 20 hours on a full charge, which for outdoor enthusiasts means you can go on long hikes, camping or fishing adventures with confidence. Say goodbye to the hassle of frequent charging and ensure you stay warm all day long. | 【High-Performance&Safety Certified】This hand warmer is made of advanced lithium batteries, aluminum, and ABS which are certificated with UL, CE, and FCC. The built-in intelligent protection system can provide protection against common problems such as power fluctuations, short circuits and overloads. It is flame-proof, explosion-proof and has no radiation, giving you peace of mind. | 【Perfect Gift for Anyone】The perfect combination of fast heating, long-lasting warmth and stylish design, our portable heater is the ultimate solution to stay warm during winter activities and cold days. They cater to everyone's needs and are thoughtful gifts for children, friends, family, and elders.