Description: Features: Replace 2pcs LR6 AA or LR03 AAA battery power supply cord,This eliminates the need for 2pcs 1.5V LR03 AAA or LR6 AA batteries,2in1 design,can powered 2pcs 3V devices at the same time. Suitable for Radio,electric toy, holiday LED lights,Clocks,luminara candles,Walkie talkie,Calculator,power remote controller, keyboard, Christmas advent calendar display,Walkman and more AA AAA Battery power supply devices No Need To Change Battery Frequently: With this AA AAA battery eliminator USB cable,you don't need to buy a lot of replacement batteries when the batteries run out,saving you more time and money. Power supply from USB charger,power bank,car charger and more USB adapter. Some mobile power bank sources have an automatic power-off function, and the output current of 90mA will automatically power off. It is recommended to use wall USB Adapter. 3V with two dummy fake battery(as conductor,no power ),only fit for 3V device. AAA AA Fake batteries cannot be used in parallel, only in series,Can not be mixed with a real AAA AA battery. Specifications: Black cable is -,Red cable is + Color: Black Material: Plastic Power Cable length: 100cm/39.3inch input: DC 5V 2A output: 3V/1.5A Model: Dual AA,Dual AAA,AA+AAA(optional) 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! Package includes: 1x USB to AA Battery Eliminator Cord