Optoma ZF2300GLASSES Active Shutter Rechargeable 3D RF Glasses (One Size Fits All) Easy to use - always in sync, with no line-of-sight required - the ZF2300 glasses display clear, bright 3D images with high contrast Stylish, lightweight, foldable design - just 1.38 oz - the ZF2300 glasses are more than one size fits all, they also fit over prescription glasses Compatibility: all Optoma projectors with 3D VESA port Optoma BC300 emitter is sold separately (not bundled together) Optoma ZF2300 glasses are compatible with BC300 emitters only; they are NOT compatible with the older generation RF emitters