Formula1 Field Reporter wireless gear

[Cameron Stuckey]

I've recently gotten into watching Formula1 races and I didn't recognize the wireless system that the roaming interviewer had on. He had an IFB and a wired mic, but walked several hundred feet around the track prior to the start of the race. I attached two screen shots of the gear he had on his belt for reference. HAs anyone seen something similar or knows exactly what they use at F1?

 

[Tony Williams]

It looks like one the belt packs could be an Anton Bauer battery, and connects to the other belt pack with a standard 4pin XLR. Just a guess.