What's in the box:
 
Hollyland Pyro Ultra 4K HDMI/SDI Wireless Video Transmitter
Hollyland Pyro Ultra 4K HDMI/SDI Wireless Video Receiver
4 x Short Antenna
4 x Antenna
USB-C OTG Adapter
Dual Ball Head with Cold Shoe Mount
D-Tap to Locking DC Power Cable
DC Power Adapter (12V, 2A)