Sony may ship two pairs of glasses (and the emitter) “free” with the LX900 TV, but for anyone needing to pick up an extra pair or two they’re available now on Amazon for $150 each.
https://gizmodo.com/would-you-pay-133-for-sonys-3d-glasses-5489070
Compatible with Sony’s HX800, HX909 and LX900 3DTVs, the batteries last for up to 100 hours before needing charging, but don’t forget you’ll need to purchase an emitter for $48 if you haven’t done so already, and a 3D Blu-ray player. The 3DTV is pretty crucial too, but then I don’t expect anyone to be buying these glasses for kicks. [Amazon via 3D-Display-Info]
