✿Replace 1 to 8pcs 1.2V or 1.5V LR3 AM4 AAA Batteries USB power supply cord,This eliminates the need for 1 to 8pcs 1.2V or 1.5V LR3 AM-4 AAA batteries,Dummy Batteries is conductor,no power,with output voltages display,easy to use,reused design.
✿No Need To Change Batteries Frequently: With this AAA Batteries eliminators USB cable,you don't need to buy more replacement batteries when the batteries run out,saving your money.
✿Press the button voltages to change 0.1V, and then long press the button voltages to change 1V,come with 7 Dummy Batteries ,if your device is over 12V,you need to buy more dummy Batteries .
✿This eliminates the need for 1-8 pcs 1.5V AAA batteries. Suitable for Radio,electric toy, holiday LED lights,Clocks,Calculator,power remote controller, keyboards,Electronic door lock and more AAA Batteries power supply devices,Suitable for 1.5V 3V 4.5V 6V 7.5V 9V 12V and more 1V-12V AAA Batteries Powered device.
✿Power supply from USB chargers ,powerbanks,car chargers and more USB adapter,input USB 5V2A,output DC1V to 24V 3W.