OCOOPA Electric Hand Warmers Magnetic Pack of 2 Rechargeable 5000mAh Portable 3 LevelsInnovative Magnetic Split Design Features two independent heaters that can be used separately for both hands or joined together as a single unit Long Lasting Five Thousand Milliamp Battery Provides hours of consistent warmth on a single charge making them perfect for outdoor activities Adjustable Three Level Heat Settings Allows you to choose between low medium and high temperatures to suit your environment and personal preference Rapid Dual Side