Question about Optoma HD29x

Active DLP-Link 3D glasses are compatible with the projector, especially the Optoma ZD201 3D glasses are recommended. These glasses synchronise automatically with the projected image and are suitable for all Optoma 3D Ready projectors. They offer a flicker-free 3D display at 120 Hz and a battery life of up to 70 hours. The glasses are lightweight, robust and can also be worn over normal glasses.

Alternatively, 3D active shutter glasses for Optoma DLP projectors are also compatible, which support 96-144 Hz DLP link and have been specially developed for a stable, brilliant 3D experience with DLP projectors.

Summarised:
- Optoma ZD201 DLP-Link 3D glasses (official recommendation)
- 3D active shutter glasses for Optoma DLP-Link projectors (compatible and powerful)

These glasses are sold separately and are compatible with the 3D-capable projector.