[2-in-1 Electric Hand Warmer - A set of 2 symmetrical hand warmers that can be combined into a palm-sized hand heater providing 360-degree warmth for your hands. Alternatively you can use them separately each hand holding one or share one hand warmers with a family. The portable pocket design is suitable for travel hunting golf hiking camping skiing and more AI Temperature Sensor Chip - UNIHAND hand warmers feature an integrated intelligent AI temperature control chip offering 3 levels of precise heat release control feedback and guidance. By continuously analyzing and recognizing the temperature between the hand warmer and your hands it ensures precise heat control for optimal comfort and safe heating. Maximum of 130 ℉ "Longer Lasting Warmth - With a large 6000mAh battery capacity and our latest AI smart chip control the electric hand warmer rechargeable provides you with up to 8.5-20 hours of warmth during the chilly winter. It effortlessly caters to your entire days needs. The 3-level indicator lights keep you informed about remaining battery power and heating status perfectly addressing your diverse requirements. Included type C charging cable can quickly charge the hand warmer" Supercar-inspired Design and Safety - Crafted with a pursuit of supercar-quality craftsmanship and exceptional ergonomic design that conforms to the natural curve of your palm while ensuring slip resistance. Our hand warmers have obtained UL CE and FCC safety certifications "Ideal Winter Warmth Gift - In the cold winter our hand warmers make an ideal gift for Thanksgiving Christmas New Year birthdays and Valentines Day for gifting to family and friends. They keep your hands warm all day long while working in the office attending classes camping hunting or engaging in any outdoor activities during the cold winter"]