100% brand new and high quality. Replace 1 to 4pcs 1.5V AA battery power supply cord,This eliminates the need for 1 to 4pcs 1.5V AA batteries,green dummy battery is conductor,without power,AA Fake batteries cannot be used in parallel, only in series. 2in1 design,Power supply from USB or Type C charger,USB C power bank,car USB charger and more USB adapter,removable design, can pass through the small hole of the battery cover if your device needs 2pcs AA battery,please choose 3V 2AA,and use 1pc AA dummy battery,if your device needs 3pcs AA battery,please choose 4.5V 3AA,use 2pcs AA dummy battery,and so on,6V=4AA Batteries, and so on. Suitable for Beard Trimmer Toothbrush Make-up Mirror Camera,Flashlights,controller,Radio,electric toy,fan, holiday lights,Clocks,luminara candles,Walkie talkie,Calculator,power remote controller, keyboard, Christmas advent calendar display,Walkman and more AA Battery power supply devices. No Need To Change Battery Frequently: With this AA battery eliminator Power supply,you don't need to buy a lot of replacement batteries when the batteries run out,saving you more time and money. Color: Black Material: Plastic Power Cable length: 110cm USB input: 5V 2A AA dummy battery output: DC 1.5V/1.5A,3V/1.5A,4.5V/1.2A,6V/1A(optional) Package Includes: 1x USB to AA Battery Eliminator Cable 1x Type C convertor