Using the Hollyview app for iOS or Android, you can monitor your video transmission in real time via a Wi-Fi connection as well as live stream directly from the receiver via your computer using an optional USB Type-C adapter. The app also allows you to install optional channel scanning firmware enabling you to easily find the strongest transmission signals. The redesigned body makes it a low-profile choice for your setup, and it features multiple fan modes to keep it cool or quiet when you are shooting.
The 400S PRO receiver is compact in size, features a bright OLED display for configuration, and has an integrated shoe adapter with a 1/4″-20 mounting thread for different mounting options. It can be powered using a USB Type-C source, the included locking DC power adapter, or by using a separately available L-series type battery using the integrated battery plate.