Features: The USB AA Battery Eliminators Replace cable offers a convenient and friendly solution to power your devices by converting 5V USB input to 3V 4.5v 6v output, eliminating the need for traditional AA batteries. Featuring adjustable voltages supply, this kit can replace 2-4pcs 1.5V AA LR6 batteries, providing versatility for various electronic devices like LED lights, fan, and remote controls. For users who want to reduce battery waste and save money on frequent replacements, this product caters to individuals and gadget enthusiasts. Perfect for use in home or office setting, it powering devices such as holiday LED decorations, desk lamp, toys, doorbells, fingerprints lock, clocks, and more, ensuring uninterrupted operation. With its easy to use designing, simply connect to a USB power station like a charging adjust the voltages sustainable energy for your electronics. Specifications: Item：USB5V2A to 3V 4.5V 6V 5W AA LR6 Battery Eliminators Cable Replaces： 2-4pcs 1.5V AA LR6 Cable length:about 118cm/46.46in Yellow battery: Length ：about 49mm/1.93in Package Includes: 1PC USB 5V Power Cable note: Due to problemsof lighting effect there might be tolerances in product, please understand. Please allow 0-1cm error due to manuals measurment