Hello renojim and RokuHaz-M
Thank you both for your replies on my Q re: the Voice Remote Pro (2nd edition)
I'll start with IR: My remote that came w/my 4850X (new as of 3 days ago FCC ID: TC2-R1051) has at the top end a cap where typically the IR sender would be. BUT the cap on this remote is completely opaque. This can be confirmed with the remote ON and pressing buttons while observing the remote with most any digital camera w/ a CMOS sensor. I therefore have to conclude that this remote does not comm using IR.
As for the RF Q: RokuHaz-M's is guessing that the COMM is via the 2.4 GHz ISM frequency band, and I would agree with that assumption. But this leads to yet another question. That ISM area is very busy with WiFi, Bluetooth, cordless phones, microwave ovens, Zigbee, and god knows what else, as RokuHaz-M indicates. Add to that mix the possibility of an open WiFi AP built into the base 4850 unit. The question for me then becomes one of security. Since the base unit is on my LAN, could one connect via the open WiFi AP in the base, and get through to the LAN. This would be a serious breach of security.
This is even more troubling because of the lack of documentation, and the "Just Trust Us" attitude of Roku . . . very strange indeed, when compared with other companies producing contemporary devices that interconnect with one's LAN and the WAN of the internet.
BartelsJuice​ , it may look opaque, but I can assure you it isn't to IR. If you have it set up to control your TV (not via CEC), press a TV control button and you can verify that it's transmitting via IR by using a digital camera. As for the rest of your questions, Wi-Fi direct is as secure as any other Wi-Fi connection. Take that for what it's worth.
