There is a LED light on this product.,when this charger is being charged the LED is onUse the psp adaptor to charge this charger and save the electronic energy into the lithium battery inside firstly.

Instruction:
1)Use the PSP adaptor to charge this charger and save the electronic energy into the lithium battery inside firstly.
2)Use the matched cable to connect this charger with other game consoles such as NDS Lite, PSP, NDS, GBA SP,to charger them. Please turn the "ON OFF" switch to "ON" position when charger the game consoles. Please turn the "ON OFF" switch to "OFF" position when not in using in order to save the power energy.

Voltage/Current parameter:
Use the AC Adaptor to charge this charger itself
Output:5V 700mA