Features: brand new and high quality. Replace 1 to 4pcs D Size battery USB power supply cord. This eliminates the need for 1 to 4pcs D LR20 batteries. No need to change battery frequently: With this D battery USB Cable,you don'for t need to buy a lot of replacement batteries when the batteries run out(need use your own USB adapter) Power supply from USB charger,power bank,car charger and more USB adapter. 3V with one D dummy fake battery,4.5V with two D dummy fake battery,6V with three D dummy fake battery(as conductor,no power ) Specifications: Black cable is -,Red cable is + Color: Black Material: Plastic Battery siez: 59x32mm Power Cable length: 100cm input: for DC 5V 2A output: for DC 1.5V/1.5A,3V/1.5A,4.5V/1.2A,6V/1A Max(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 D Battery Eliminator Cord