How long does it take to regain sync and what is involved?
I found this over in 3d tech talk.
Also looking for reviews of the 750 I came across Optoma Licenses Bit Cauldron Technology for New Optoma 3D-RF Glasses
" glasses from other manufacturers that also incorporate Bit Cauldron technology will change their behavior to match to the Optoma projector. Up to one thousand pairs of glasses can be simultaneously synchronized to one projector, even with another similar configuration in a nearby area."
"the glasses are capable of operating at any refresh rate from 50 to 240 Hz to support potential future increases in refresh rates and international standards. the Optoma 3D-RF glasses incorporate software from Bit Cauldron Corporation which is also designed to be field upgradeable to the upcoming ZigBee 3D Sync Standard for 3D glasses."
"the 3D-RF glasses also have some of the largest lenses in the industry so that they can fit over a variety of faces, even if the user is wearing them over prescription eyeglasses. the new glasses are fully rechargeable with an ordinary Micro USB cable and they can perform over 60 hours of operation with each charge."