Features: Replace 1 to 5pcs 1.5V C battery USB power supply cord,This eliminates the need for 1 to 5pcs 1.5V C batteries,Dummys battery as conductors,no power,with output voltage display,easy to use,reuses design. No Need To Change Battery Frequently: With this C battery eliminators USB cables,you don't need to buy more replacement batteries when the batteries run out,saving your money. Press the button to change voltage,with power Switchs,come with 4 Dummys battery. This eliminates the need for 1-5 pcs 1.5V C batteries. Suitable for Radio,electric toy, holiday LED lights,Clocks,Calculator,power remote controller, keyboard,Electronic door lock and more C Battery power supply devices,Suitable for 1.5V 3V 4.5V 6V 7.5V and more 1.5V-7.5V C Battery Powered device. Power supply from USB charger,powerbanks,car charger and more USB adapter,input USB 5V2A,output DC1.2V to 12V adjustable. Specifications: Input Voltage: USB 5V 2A Output Voltage: DC1.2V to 12V(can adjustable voltage),6W Cable Length: Approx. 120cm/47.2inch Package Includes: 1X USB adjustable voltages Cable with display 4 X Dummys battery note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!