Feature:1. EXTERNAL POWER SUPPLY: DMW DCC12 DC coupler is equipped with a USB cable, which allows you to use the connected power bank as an external power supply with your camera, replacing the camera battery.2. COMPATIBILITY: Suitable for GH3, GH4, GH5, GH5S and other models of cameras, ensuring perfect compatibility with the camera and providing you with a more convenient power supply solution.3. MULTIPLE SAFETY PREVENTION: Equipped with multiple prevention technologies, including short circuit prevention, over voltage prevention and over current prevention, ensuring safety during use.4. LABOR SAVING AND CONVENIENT: The dummy battery is equipped with advanced decoding circuit and voltage reduction and boosting circuit. Connect the USB plug to the power supply and then insert the coupler into the camera's battery compartment to provide stable, continuous power to the camera. Using an external power supply allows for long periods of shooting without the need to repeatedly replace the camera battery.5. REDUCE CAMERA HEAT: Made of plastic, which effectively reduces the problem of camera heat and avoids affecting the picture quality due to overheating.Specification:Item Type: DMW DCC12 Dummy BatteryMaterial: PlasticWeight: Approx. 68g / 2.4oz.Package List:1 xDMW DCC12 Dummy Battery1 x Data Cable