Features 1. Personalized Flame Style: I have designed the front of the Warm Hand Treasure as a charcoal fire style, which does not affect the heating effect. Whether you are outdoors during the day or camping at night, it always brings you a good atmosphere and healing effect. We have designed an independent switch button for the atmosphere light, which is easy to operate. 2. Digital Display And Long Battery Life: 5000mAh rechargeable battery with USB-C charging port, fully charged in approximately 5 hours, meeting the daily usage needs. Independent temperature change button, digital display, allowing you to clearly observe the remaining power and heating status. 3. High Performance And Safety: I use a rechargeable hand warmer made of high-tech lithium batteries, aluminum, and ABS. Built in intelligent protection system, with protection functions such as power on, short circuit, overload, etc., shockproof, anti scalding, explosion-proof, and radiation free. 4. Heating Technology: PI carbon crystal heating technology releases infrared light to break through the radiation heat, approaching the wavelength of the human body, easy to penetrate the skin, and absorbed by the human body. 5. Multiple Scenarios For Use: Hand warmers are stylish, portable, and compact. Ergonomic design makes you more comfortable. Suitable for travel, sports, football, hunting, golf, fishing, hiking, camping, skiing, etc. Specification Material: ABS Color: Green, White, Black Size: 10 x 6 x 4 cm Weight: 160 g Package Include: 1x Charcoal Warm Hand Treasure