Had several people help me out a great deal here, and want to pay it forward a bit. Just installed a panel mount intercom in our plane and no longer want or need this. Runs on two 9 volt batteries or aux power input jack (don't have adapter). It always worked fine, but I got sick of the extra cords. As you can see, the cable jacket is TOTALLY shot...gummy, rotted, and lots of places with bare shielding. The cable should be replaced, but for anyone who's built cables or done electronic work/soldering, it's not difficult. It did work fine last time I used it a few months ago. Free to anyone who wants it. If you want to throw me a few bucks for shipping, I won't say no, but it's not necessary. I just hate to throw stuff away that works and/or can easily be repaired. Edit... forgot to include pic. Here it is..