The Dummy Battery has built-in latest advanced decoding circuit, it will display power level on the camera. You can get the battery condition easily.The NP-FW50 Dummy Battery kit can replace the NP-FW50 Battery, the power adapter continuously provides unlimited power to the camera through the AC outlet. Don't worry about running out of battery for long time , such as livestreaming, video, scenery live camera, webcam, etc.1. NP-FW50 Dummy BatteryProduct Name:-FW50 Dummy BatteryModel:-FW50DC Connector:DC 5.5x2.1mm male plugDC Input:7-8.4V(Max)DC Output:6-8.4VCable Length:50 cm (Stretchable length: 150cm)2. AC Power Supply AdapterProduct Name:AC Power Supply AdapterModel:AS3602A-0843000DSInput:100-240V 50/60HZ 1A(MAX)Output:8.4V 3APower:25.2WCompatible with for Alpha 7S/ ILCE-7S/ A7S/ 7SAlpha 7S II/ ILCE-7SM2/ A7SM2/ 7S IIAlpha 7/ ILCE-7/ A7/7Alpha 7 II/ ILCE-7M2/ A7M2/7 IIAlpha 7R/ILCE-7R/A7R/7RAlpha 7R II/ ILCE-7RM2/ A7RM2/ 7R IIAlpha 6100/ ILCE-6100/ A6100Alpha 6400/ ILCE-6400/ A6400Alpha 6500/ ILCE-6500/ A6500/ 6500Alpha 6000/ ILCE-6000/ A6000/ 6000Installation instructions:1. Open the Battery compartment2. Insert the NP-FW50 dummy battery in correct direction3. Open the camera power connector cover and pass the dummy battery cable through the slot on the side of the camera battery compartment.4. Close the battery compartment cover and connect to the power adapter.Plug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on.Colour:BlackMaterial:PlasticPackage Contents:1 * Dummy BatteryOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.