[. . . ] You may use the original USB charging cable supplied with your electronic devices for charging. Do not insert any NiMH rechargeable batteries into the battery compartment when charging electronic device is in progress. [. . . ] Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undersired operation. Do not dispose of electrical appliances as unsorted municipal waste, use separate collection facilities. Contact your local government for information regarding the collection systems available. If electrical appliances are disposed of in landfills or dumps, hazardous substances can leak into the groundwater and get into the food chain, damaging your health and well-being. AC100-240V for worldwide use Equipped with 2 charging channels Charge 2 or 4 pcs of AA or 2 pcs of AAA rechargeable batteries Charge all kinds of USB compatible devices via USB output port Safety timer Primary and damaged batteries detection One dual colour LED indicator Insert GP NiMH rechargeable batteries into the battery compartment with correct polarity and positions. Directly plug GP PowerBank into its corresponding AC power outlet for charging. Plug the USB cable into the USB output port of the charger, then connect another end of the USB cable to your electronic device. You may use the original USB charging cable supplied with your electronic devices for charging. Do not insert any NiMH rechargeable batteries into the battery compartment when charging electronic device is in progress. Then, disconnect the USB charging cable from the electronic device and the charger. For best performance and safety, charge only GP NiMH batteries with GP PowerBank. For brand new batteries, 2 to 3 cycles of charging and discharging are required to optimize battery performance. [. . . ] Do not dispose of electrical appliances as unsorted municipal waste, use separate collection facilities. Contact your local government for information regarding the collection systems available. [. . . ]