This has been a "hard to find" item until now - previously you have had to buy the new Gear VR Headset to get it. :-(
RRP is £49 so this represents a 30% saving. (Use the code VRTH1RTY to get this price).
NB Works with all the "old" Gear VR Headsets and S6/S7 VR enabled phones.https://www.youtube.com/watch?v=P6ypoRXAZTQ