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I had this idea stuck in my head that the Trackclip pro was battery powered and charged up by plugging it into a USB port. Well after getting mine, I found I've got one more wire to deal with.
The unit seems to work better then the Hat with vector clip, but I hate having to deal with the extra wire.
Well, what do you think of the chances of developing one with a rechargable battery? It wouldn't have to use a USB port, but could have a socket on the side of the unit, that you could plug a wall transformer type charger plug into.
Does the unit use anything other then getting voltage from the USB port to power it now?
I would think the LED's use very little power and you could probably get away with a pretty small rechargable battery and get several sessions out of it before recharging.

We could have gone with battery power for the TrackClip Pro, but we felt that having the lightest weight device possible was paramount. Also, if we had done gone the battery route, we would have needed a status light to tell you it was "on", then a switch, then replaceable batteries, or a charging system, and then it just got to be more expensive and complex, so a wire it was, and lightweight it is. You can make it battery powered quite easily, just cut the cord or solder something to the clip part, very low power, like 16ma, so a battery could last for 24 hours, I am sure someone will make something, if the market demands it!