Feature:1. Compact And Portable: Mini hand warmer is lightweight and has a small size, making it easy to hold and carry without taking up much space. It can also function as a power bank.2. Quick Heating: The hand warmer heats up in just 3 seconds, eliminating the need for long waits. It reaches its peak temperature range in just 50 seconds and has a long lifespan.3. Adjustable Temperature: The rechargeable hand warmer features 3 temperature levels, ranging from 4060C, allowing you to adjust it to your desired temperature.4. Convenient USB Charging: With its built in battery, this hand warmer can be easily charged via USB. It provides a reliable and continuous source of warmth.5. Versatile Usage: Ideal for outdoor activities, winter sports, camping, and more. The hand warmer is suitable for all ages and provides a comfortable and soothe warmth during colder seasons.Specification:Item Type: USB Hand WarmerMaterial: ABSBattery Type: Lithium ion (built in)Battery Capacity: 2400mAh.Package List:1 xUSB Hand Warmer1 x Manual1 x USB Charging Cable