All powered by a computer USB port / charging equipment / digital products [Mobile / Mp3/Mp4/Mp5/USB fan / USB air purifier， etc.].

Applies to most equipped with a rechargeable cell phone charging data cable.

For USB speakers， USB fan， USB powered USB devices such as thermal products.

Can be used as USB Hub (Hub)， notebook cooling rack external power supply.

     Wide voltage range can be used in AC 110 ~ 220V.

Output 5.0V == 500mA MAX.

Charging process is fast， efficient， safe and reliable.

Compact， lightweight， easy to carry， easy to operate.