I found a wiring diagram for converting from mini to to XLR on the Shure microphone website. I believe it was under "1/4 inch stereo (used as balanced)to XLR" but the wiring is the same. Use as few adaptors as possible (I made a patch cord out of the plug they give you and a solder on XLR plug). I have the 100 series Sennheiser with lapel mic and I also use it with my shotgun mic. It is very quiet and has a good range. I also had to special order mine and I was a little nervous about it, but it has worked out well. Also of note: the 3.5 mm plugs screw to the xmitter and receiver so you can't accidentally unplug them. One down side that I noticed in the manual is that they don't recommend using rechargeable batteries (9 volt). It wasn't a problem for me, but you could go through a few batteries, depending on what you're doing.

I thought the same Phil, but it’s the nature of rechargeable batteries. This is because they have a lower Amp hour rate than a standard alkaline. The same goes for digital cameras, but this time the drain is at a much higher rate. Something like 15minutes continuous use (rechargeable) 30minutes use (non-rechargeable).

With the wireless microphones you get 1hours use from rechargeable and 8hours use from non-rechargeable. Mind you Sennheiser has included a low battery warning to let you know when it’s going to die.

Thanks Phil, I have a feeling that Sennheiser have made a mini jack to XLR adapter, I think I'll purchase that rather than make my own.

All the best,

Ed Smith