The second LED extension for V3 Tracker is designed to fix orientation drift issues. The way it works is simple : instead of using just one point to track the position, we add a second which gives us a direction vector. Thanks to this vector the Tag can know its absolute orientation in the room.
To learn more about it and know how to add it to your Tag, check out this blog post.
IMPORTANT NOTICE: This item does not include a Tag V3.