Scope of application: all devices/digital products, mobile phones/small speakers/Mp3/Mp4/Mp5/USB fans/rechargeable speakers that can be powered/charged through the computer USB interface. Note: Smart phones cannot be used
The light becomes full and turns green
3.7V battery will not change light(It will automatically power off when fully charged)Blue light mark 1000 mA(Actual 600 mA)
It can supply power to USB devices such as USB speakers, USB fans, and USB thermal products.
It can be used as an external power supply for USB Hub (hub) and notebook cooling rack.
Can be used as a charging head for charging speakers.
Wide voltage range, can be used for AC 100~240VAC
Output 5.0V==500mA MAX.
Lightweight, easy to carry and easy to operate