Features1Compact And Delicate: USB hand warmer is small and lightweight, therefore it is able to be used in your hand without taking up too much space. 23 Seconds Fast Heating: Rechargeable hand warmer can touch the peak range in 50 seconds without waiting for heating for a long time, and has a long service life. 3 Levels Temperature: Portable hand warmer has 3 levels temperature , from 35 to 55, and you can adjust it to the temperature that suits you. 4Hanging Strap Design: Electric hand warmer has a hanging strap design, which is easy to carry and use, and can also be carried directly in the pocket. 5Multifunctional: Electric hand heater is also able to be used as a nightlight, and it can also illuminate when heating and you will feel warm in cold winter.SpecificationItem Type: USB hand warmerMaterial: PCTemperature Adjustment: 3 levels, 35 in 1st level, 45 in 2nd level and 55 in 3rd level.Battery: 1200mAh lithium ion battery( built in)Charging Time: 4-6 hours, no more than 6 hours.Size: Approx. 75 x 85 x 30mm / 3 x 3.3 x 1.2inPackage List1 xUSB Hand Warmer 1 x Charging Cable