Portable USB Hand Warmer includes the following features :

• Temperature setting - Max. 40 C
• Charging time: 4 - 8 hours
• Reusable within 500 times
• Capacity of 4,500 mAh
• USB input: 5V / 1A
• USB output: 5V / 1A
• USB cable included
• Available in various colors
• Customized logo imprint is welcomed

Material :

• ABS plastic housing

Size closed :

• Size of 10.2 x 6 x 2.5 cm