@Doundounba -- thanks! That's exactly the kind of information I was hoping this thread would turn up.
Now,
BIG NEWS --
It gives me great pleasure to report that the 'TV-B-Gone' device triggers the K-01 shutter from
way across a room... just like a regular TV remote. Remembered this morning that I had one, from before retirement, when I wanted to turn off the noisy TVs in the company cafeteria. And it works perfectly... you push the button... and the K-01 takes the picture! Since it is IR, line-of-sight to that front-of-camera-sensor still applies... but you can be off at quite an angle and it still works. US $19.95.
Recommended! Amazon.com : TV-B-Gone Universal TV Power Remote Control Keychain : Electronics