Peavey In Ear Wireless Monitor System with Transmitter/Receiver and Ear Buds The Peavey In Ear Monitor System is a less expensive option for the part time or hobby performer who does not wish to make the large investment to in-ears. This is your chance to get rid of those wedge monitors that are so hard on your back, and to eliminate the grey noise that washes over your stage with speaker based monitors. Peavey also has a rack mount kit available that will allow you to mount 2 of the transmitters in a single rack space, to save room. Features: -100 selectable frequency presets -Dynamic Compander provides crystal clear sound as well as enhanced AF frequency range and increased range for audio sensitivity.