Unobtrusive, little device. It has its own connector type and socket on the back of the TV, so does NOT use up a USB socket at all. Fits neatly under the Sony logo for sending glasses sync info. Only negative point is the wire coming from it is a little stiff for the weight of the device (this is very light) so unless you tape it to the bottom of the TV it has a habit of moving. We used "magic tape" under the device then pressed it down onto the TV stand at the front (40HX803). This works great. Has 3 height settings on side of device so the infared is aimed at the viewers. 3D only on when TV is in 3D mode and the player detects a disc with 3D on it, so your not getting the signal all the time. When turned away from the sensor glasses stop beign 3D and turn off after 5 minutes.
This item is small and unobtrusive. When the Sony people installed the TV, they glued this to the stand, just in front of and below the screen, where it passes more or less unnoticed most of the time. You could fit it above the screen if necessary, but to me it seems much less conspicuous under the screen.
It does the job faultlessless and the shape is acceptable, so I can't give it less than five stars.
The Sony 3D system works on infra-red, not radio or anything else (such as polarizing lenses), so there must be an unbroken direct line of vision between the glasses and the transmitter, or it won't work. So long as you don't obscure the transmitter with clutter in front of it, it will work faultlessly. But you wouldn't want clutter in front of such a beautiful TV anyway, so there shouldn't be a problem.
Got this transmitter in bundle so no complaints here...but....apparently the lx903 uses the built-in unit which shows up as a thin red bar,spread across a few inchs of the bottom of the tv screen,displayed by 5 red bars.Now im not sure on this creating better alround 3D ,but it doesn't appear integrated in the tv screen,for nothing.IMO the hx803 should have the same method,esp what this tv cost in late 2010.
This is a neat little device which talks to "intelligent" 3D glasses. It's small and sits, centrally, just in front of the TV. A single cable plugs into a unique connection socket on the back of the TV. Easy to install. Takes up little space on the TV stand and does the job well.
Bought this, and 4 pairs of Sony 3D glasses, for my new Sony 52HX903 TV. Not much to say other than they plug into the 3D transmitter port on the back of the TV and hey presto, 3D TV! The TV itself is stunning and the 3D, whether its Sky 3D or 3D games on my PS3 are a sight to behold!
Product delivered promptly and in good order and working to specification. Small and unintrusive as the black colour merges with the black television to make it very tidy. Can sit at quite a wide angle and still receive the signal.