Im not sure if anyone is familiar with sound powered phones, but that's basically what they are, sound powered phones. They're basically a headset with big speakers that double as mics and use the power of "sound" to vibrate a variable capacitor and send a current down a line to the headset on the other side. Theses phones are normally used in emergency situations where you can communicate in a closed circuit when power is lost. But where I work we use them all the time, mostly non-emergency situations where we still have power. The problem is that these headsets are huge, bulky and uncomftorble and I have to wear them for hours on end. So basically I'd like to replace the huge headset with a motorola bluetooth headset. The other problem is finding a simple bluetooth audio transceiver that I can hook up to the other end of the phone jack (where the sound powered phone would normally be plugged in to) that can be paired with the motorola bluetooth. So I was wondering if anyone knows of a bluetooth audio tranceiver, maybe pre-built or not that I can modify or implement into these sound powered phones.