Couple of comments on TrackIR with the TrackClip Pro.
First, I thought it was pretty silly for the cost of the item ($180 for TrackIR, TrackClip Pro with shipping) that NaturalPoint does not include a head clip - a woman’s plastic hairband of the right size would probably do just fine. Instead, NaturalPoint expects that you have a headset and will clip the TrackClip Pro onto that - which might occlude one ear with the ear piece if you don’t plan to pipe sound through a headset in the first place but just want to hear your computer speakers clearly.
The other thing that I thought was lacking were clear instructions on how to use the camera mounting clip on the monitor and how to open the TrackClip Pro clamp to clamp it around a headset clip - without a more detailed explanation, I mistook the TrackClip clamp hinge for the clamp opening point until I realized you pull out on a piece of plastic on the other end of the clamp to open it (I thought the hinge pin was a locking pin that had to be removed to open the clamp!). It’s kinda silly to make the out-of-box experience with TrackIR a puzzle-solving challenge.
Haven’t found yet whether there’s a full user manual to download but there was no included advice on how to store the TrackClip Pro. I figured with my computer setup on a large dining room-sized kitchen table in a big nook that I didn’t want cooking grease from across the room settling on the IR LED’s when not in use. So I found that a plastic sandwich bag is just the right size to drop over the LED clip to shield the infrared LED’s from dust and dirt when not in use.
Edit_Update: Manuals for the TrackIR and TrackClip Pro can be downloaded from here: https://www.naturalpoint.com/trackir/downloads/ (not mentioned in included product literature but discoverable below software download section on NaturalPoint website)
I did find that after I removed a paperclip from the thick Software Download Instructions card that behind the thick card there was a foldout Quick Start Guide for the TrackIR that detailed how to mount the camera, including the reasonably important point of using a a wire strain relief clip in the camera base to secure the wire just before it enters the camera - I managed to mount the camera with the stand backwards without securing the camera wire to the stand clip, not realizing that I was looking at rear views of the mounted camera in the TrackClip Pro Quick Start Guide that I was ignorantly using as my setup guide.
The ironic thing is that with the camera stand on the monitor backwards, the angle of the IR camera looking forward and down is a lot more adjustable. Otherwise, the top of my monitor is thick enough front-to-back to make putting the TrackIR camera stand on the monitor securely at just the right forward facing angle a bit touchy when the camera stand is used the “right way” around. The TrackClip passive reflective clip that comes with TrackIR by itself, to be mounted on a hat, seems designed for a lot higher forward facing camera angle than the TrackClip Pro, designed to be mounted lower down on the side of the head clipped to the sideband of a headset. Vertical camera angle really isn’t covered at all specifically in the setup instructions but I imagine I’ll get to that down deep in the TrackIR software guide in due time.