1-4 AA/AAA Channel Charges 2 or 4 Ni-MH/Ni-Cd Batteries With LED display function. Intelligen&smart safety assured with plug of UL/TUV INPUTH:AC 100-240V,50/60HZ USB input:5V 500mAH OUTPUT:DC 2X(2.8V-300mA)AA DC 2X(2.8V-150mA)AAA Trickle Charge:AA/AAA@20mA