Cheap but usable IEM system. Basic mono or stereo speak-on inputs for XLR or Jack. UHF channels for the 2 wireless receivers included. 3.5mm headphone outputs on the transmitter and both receivers. Used a few times but still in great condition. Also includes a rack mount for the antenna if you plan on using it in a rack system. The stock ones were garbage and I threw them out. Get yourself a set of nice in-ear-Monitors??