This attachment tracks translational and rotational movements via three IR LEDs for pointing and shooting.
High power IR LEDs are needed to overcome any light interference. Powering such LEDs via the GRIFTA or a cable isn't practical; therefore the ANTLERs are equipped with integrated Li-Ion batteries.
After two hours of gaming just swap out the whole module and clip in a fresh ANTLER. The ANTLERs are simple and inexpensive. They will be supplied in packs of two, together with a charger.
Oculus Rift is using a very similar tracking-technology. This makes the GRIFTA a perfect match for Virtual Reality Applications.