Features:OOTDTY   With this AAA battery eliminator cable,you don't need to buy a lot of replacement batteries when the batteries run out,saving you more time and money.The adapter is made of anti-oxidation nickel plated socket and pure copper wire, with the function of short circuit protection, overcharge protection and overcurrent protection.Wide Applications: the function is equivalent to 2 AAA battery, so it can be used for most devices that require 2 AAA batteries, such as LED Light, Thermostat, Table Lamp, motion sensor trash can, DIY house, decorations.The round hole interface is 5.5x2.1mm, please confirm carefully whether it is the size you need before purchasing.Unable to power electronic equipment by itself, it needs to be used with the AC to DC wall power adapter.Specifications: Material:PlasticLength:Approx.150cm/4.92feet,300cm/9.84feet(optional)Plug Type:USInput:100-240VOutput:3VPackage Includes: 1x Power Supply Adapter Cable1x AAA Dummy BatteryNote: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.