[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] 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 battery capacity and our latest AI smart chip control, the electric hand warmer rechargeable provides you with up to6-12 hours of warmth during the chilly winter. It effortlessly caters to your entire day's needs. 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 resistance. [perfect Winter Warmth Gift] In the cold winter, our hand warmers make an perfect Thanksgiving, Christmas, Year, birthdays, and Valentine's 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. Product Name:Hand Warme Battery Capacity:2000mah (7.4wh) Working Time:6-12htest in the 20 Charging Time:3-4h Input Interface:Type-C Input Voltage/Current:5V/1A Colour:Black Material:ABS Size:13.21x10.11x2.49 cm Package Contents: 1set * hand warmer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.