I have found about the new controllers. They are from china's company Ximmerse. The brand name is Neon-1. They come with 1 Stereo camera, Head Mount and 2 controllers which operate using 2.4 Ghz signals. In CES 2017 Ximmerse company was saleing for US $ 99
Pimax, Please bring this controllers bundle with Pimax 4k Or Pimax 2.5K. HTC Vive is saleing this controllers with HTC LINK VR box and Steam is Supporting this controllers.
They must be good quality as HTC VIVE is using for their HTC LINK Product which is only for sale in JAPAN.
Pimax Please bundle it with PImax-4k or Pimax 2.5K and I will Order staitway...
They support 6 DoF details..> https://www.roadtovr.com/htc-link-headset-ximmerse-neon-tracking-details/