1Even Heat Conduction: Aluminum alloy surface cover, uniform and rapid heat conduction, ergonomic design, delicate touch, non slip and scratch resistant. 2Adjustable Temperature: 3 seconds double sided heating, 2 gears temperature adjustment, low temperature 45, high temperature 52, automatic power off protection, safer to use. 3Multiple Function: Built in makeup mirror, saving space and easy to make up at any time, especially suitable for women. Power bank function, 5000mah large capacity lithium battery. 4Warm Hands: Electric hand warmer effectively warm your hands, constant temperature hot compress, make you feel comfortable. Thoughtful gifts for loved one, mothers, friends. 5Portable Design: Rechargeable hand warmer adopts ABS material, firm and sturdy, stable and durable. Compact and light, suitable for travel, outdoor activity, etc.