Item Type: Electric hand warmer Material: ABS, aluminum alloy Battery Type: Lithium ion battery (built in) Battery Capacity: 6000mAh Height: Approx. 99mm / 3.9in Width: Approx. 40mm / 1.6in Extend Arms Size: Approx. 65mm / 2.6in Maximum Distance Between Earmuffs: Approx. 79mm / 3.1in Package List: 1 x Electric Hand Warmer 1 x Charging Cable Temperature Display: After turning on the electric hand warmer, the high temperature setting displays 60 degrees Celsius and the low temperature setting displays 45 degrees Celsius. Compact And Portable: Rechargeable hand warmer is small and lightweight, designed to fit comfortably in your hand without taking up too much space. It is easy to carry and can be conveniently stored in a pocket. Fast Heating: Pocket USB warmer heats up within 3 seconds and reaches peak temperature within 30 seconds, maintaining a consistent warmth between 45 and 60 degrees Celsius. Gifts: Electric hand warmer is an ideal gift for family and friends, providing comfort and warmth during cold weather. Soft Material: The arms on both sides of the electric hand warmer are made of environmentally friendly soft material, offering a comfortable feel when held in hand or carried in a pocket.