Specification:
1.Product Standard: Qi (Wireless Power Consortium )
2.Output Current:5V 1A
3.Input:5V 2A
4.Output: up to 5V±0.1V
5.Charge Frequency: 110KHz-205KHz
6.Charging Effective Distance: 5mm
7.Conversion: 73%
8.Material: Bamboo
9.Size: 93mm (3.66 inches) in diameter.
10.Weight:60g (2.12 oz)

It comes with a USB cable to plug straight in to a laptop, usb port or mains socket with suitable adaptor.