Description: Features: Adjust the voltage before use. Replace 2 to 8 pcs 1.5V AA batteries with this power cord. This eliminates the need for 2 to 8 pcs 1.5V AA batteries. The green dummy battery is a conductor, without power. AA dummy batteries cannot be used in parallel, only in series. If your device needs 2 pcs AA batteries, choose the 3V setting and use 1 pc AA dummy battery. If your device needs 3 pcs AA batteries, choose the 4.5V setting and use 2 pcs AA dummy batteries, and so on. 6V = 4 AA batteries, and so on. Suitable for cameras, flashlights, controllers, radios, electric toys, fans, Christmas lights, clocks, Luminara candles, walkie-talkies, calculators, remote controls, keyboards, Christmas calendar displays, Walkmans, and other devices powered by AA batteries. No Need to Change Batteries Often: With this AA battery eliminator, you don't need to buy many replacement batteries when the batteries run out, saving you time and money. If it doesn't work after installation, please check if the dummy battery is installed in the wrong direction and if the voltage matches the product. Specifications: Color: Black Material: Plastic Model: AA Power cord length: 110 cm Input: AC 100V-240V 0.2A/50-60Hz DC Output: for DC 3V 4.5V 5V 6V 7.5V 9V 12V (3-12V adjustment) Max: 1.2A Plug: EU plug Note: 1. Transition: 1cm = 10mm = 0.39inch 2. Please allow 0-1cm error due to manual measurement. Make sure you don't mind before bidding. 3. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Contents: 1x EU plug battery eliminator 1x Tool 7x Dummy battery