I have a POSSE live performance monitor system. http://www.musiciansfriend.com/pro-audio/posse-pm01-in-ear-live-performance-monitor?src=3WWRWXGP It works really great for acoustic performers allowing you to monitor your vox/guitar with earbuds, so no need for monitors. I have also used it for live band (monitored my vox to allow me to hear myself better). System lets you intercept your vox and guitar, bring signal from board, and there is an ambient mic, so you can really mix everything up with your own personal mix. This is a great little setup for those looking to improve on hearing themselves without investing in a larger system. This system works great except for the belt attachment (connects earphones). There appears to be a short or a dirty connection. Since you can bypass this part and plug your headphone right into the receiver, I never really investigated it. Probably not hard to fix, but also does not seem like a necessary part - just allows you to disconnect headphones while still keeping them on. Truly works just fine without this part..... Anyways, because of this part, I will sell for $80 or best? Shipped/paypal.