Welcome to our store! This mini portable electric hand warmer is a versatile device that heats up quickly, providing warmth on both sides for a comfortable hold. It is designed for one-handed use and is perfect for on-the-go use due to its compact size, lightweight, and portable nature. You can easily carry it in your backpack or bag, making it convenient for outdoor activities. Not only does this hand warmer keep your hands cozy, but it also doubles as a power bank to charge your phone on the move. The built-in 5400mAh lithium battery ensures long-lasting warmth and power. Additionally, the hand warmer comes with a keychain attachment, allowing you to hang it on your bags or backpacks to prevent it from falling. This hand warmer makes a great gift for your loved ones on special occasions such as Thanksgiving, Christmas, New Year, birthdays, and anniversaries. It is a thoughtful present for relatives, children, family, and friends. Product Details: - Material: ABS, PVC, Silicone, Aluminum Alloy - Input Output: 5V 2A - Battery Type: Built-in Lithium Battery (shipped with Built-in Lithium Battery) - Battery Model: 18650 - Battery Capacity: 5400mAh - Power: 9W (maximum) - Charging Interface: Type C - Output Interface: USB 2.0 - Level Temperature: Level 1: 45℃, Level 2: 55℃ - Weight: Approx. 285g / 10.1oz Package Includes: - 1 x Hand Warmer - 1 x Keychain - 1 x Charging Line - 1 x Storage Bag - 1 x English User Manual 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.