Putting so much effort into the picture, the sound is often overlooked while filming. So if you have no dedicated sound guy the usual approach is to at least get a decent audio recorder and sync it with the images later. But what do you do if you notice that the audio levels are spiking or sound is too faint and you don't want to rely on an automatic compressor to more or less get it right? You can't touch the recorder during the shots as that would be noticeable in the recording. So this allows you to attach the RC04 remote-control for the famous Zoom H4n audio recorder to the handle of your camera rig and not only control the levels of all 4 channels (e.g. stereo background, interview partner and interviewer) but also start and stop the recording, play it back right after the shot to give your interview partner a thumbs up but also have 4 LEDs in view to inform you about levels on each channel being about to spike and feedback that recording has indeed started. Update: I added some fins to make this easier to print. The difficulty level is still quite high. Feel free to suggest a more elegant design. (That does not rely on a specific kind of bicycle-handle.) blog post: marcuswolschon.blogspot.com/2011/04/audio-remote-for-shoulder-rig.html marcuswolschon.blogspot.com/2011/04/en-some-more-cad.html photo album: picasaweb.google.com/Marcus.Wolschon/20110325Bis201105ShulterRigBauen?feat=directlink forum post: forums.reprap.org/read.php?88,75536,page=2 IF YOU HAVE NO ACCESS TO A 3D-PRINTER AND CAN't FINE SOMEONE ELSE TO PRINT THESE FOR YOU, YOU CAN HAVE SHAPEWAYS PRINT THESE FOR YOU: shapeways.com/shops/marcuswolschon?section=Camera+and+Filming