The first half has Motobu-ryu udundi bare hand and weapons kata, for those people who were waiting in vain for me to get my sensei to upload video of an udundi enbu.
I think the performers in this video are probably mainly students of the Choki-Chosei line of Motobu-ryu kenpo, however. I can tell by their stances and how they keep rooted during punches. Remember, the Motobu-ryu organization is divided between the two styles. Some dojo mix more than others.
That appears to be Chosei sensei demonstrating naihanchi from about 5:35, but I don't think he is in the pair before that. Hard to tell with the video quality.