I am planning a performance, where an actor uses a small battery-powered wireless camera to film the mouth of another actor on stage, who is performing his text. The movement of the mouth is then projected on the stage. I am now looking for a small camera device (mind. 480x640, better more), which is battery powered and has a wireless connection (20m, indoor) and which has such a low delay, that the voice of the actor is more or less synchronized with the movement of his mouth on the projector. I am working with Isadora on Win7 and I would prefer a USB connection, if possible.

Does anybody have any experience with this type of problem and can give me some hardware or technology suggestions or links to related products? I am interessted in camera, wireless device, receiver and converter to USB and I am based in Switzerland Europe.

I saw some topics about wireless cameras, but they seam to be 4-5 years old, so I am interessted, what current solutions look like.

Thank you very much for your help.

Kind Regards
Marco