DB-F570 is the NP-F type dummy battery with USB-C port, allows you to power SONY ENG cameras, and all 3rd party cameras and video devices that use NP-F battery, by external USB-C power source.
Power Cameras by USB-C Source
You can use USB-C power bank, USB-C V-mount batteries or USB-C power adaptor to provide continuous power for cameras and video devices, extend runtime and ensure continuous power without interruption.
Power Info Read by Cameras
The DB-F570 dummy battery features a digital power management chip that enables data exchange with SONY ENG camcorders, displaying remaining battery level information in the Viewfinder.
