If you are looking to build a complete wireless camera rig so you can remotely monitor and focus your shots then take a look at the CAME-TV Astra follow focus and Crystal-V wireless video system.
➡Wireless Follow Focus from CAME-TV
B&H https://bhpho.to/3nfqzRG
Adorama https://adorama.rfvk.net/qRGXL
eBay https://ebay.to/2Sn9uHh
➡Wireless Video Kit from CAME-TV
B&H https://bhpho.to/30y5NmG
Adorama https://adorama.rfvk.net/rv1o3
eBay https://ebay.to/3cT3hMN
If you want to find out more about the camera that I used in this video then please check out my review of the ZCam E2 F6.