Features: 1.Innovative Magnetic Design: This smart hand warmer features a magnetic design, allowing two detachable units to easily attach or be used independently. Its compact size and ideal for outdoor activities like camping and skiing. 2.Longer Lasting Warmth: With an enhanced 5000mAh x2 rechargeable battery capacity and performance, enjoy 5-10 hours of continuous heat, ideal for all-day outdoor activities. 3. Warming Experience: 3-level temperature adjustment, 3S quick heating, This electric hand warmer offering a temperature ranging from 40°C to 60°C 4.Ultimate in Ergonomics: Through hundreds of refinements, Just for a comfortable grip.You'll have an awesome grip feel a with velvety smoothness and slim waist in hand. Made to last: Advanced materials and batteries absolute safety and lasts longer and stronger than ever. This handwarmer make an excellent gift for golfers, campers, hunters, hikers, and other outdoor enthusiasts. Simple Operation: Easily activate rapid heating by pressing and holding the button for three seconds. This handwarmer also functions as a power bank, capable of charging your phone. Specifications: Material: ABS+PC Color: Black Battery capacity: Total 10000mAh (single 5000mAh) Charging interface: Type-C Charging Inpu: 5V/2Amax USB Output: 5V/2Amax Temperature: 40°C-50°C-60°C Working time: 10h(40℃)-7h(50℃)-5h(60℃) Package Contents: 2 x Hand warmers 2 x Type-C charging cables 1 x Packaging bag 1 x Instructions in Chinese and English 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.