I have for auction 4 Sennheiser cordless mics with rackmountable (ears included) recievers. These mics are almostnew having bought them for my girls vocal group that disbanded when one married and relocated...:( . They have less than 10 hours total use, each color coded for easy indentification. The recievers have backlit display, jog dial wideband FM modulation, tuneable frequencies in 5 Khz steps. RF 450-960 Mhz. The mics have sensativitity adjustment in 1 db steps and operate 8 to 10 hours on 2 AA batteries. I have nothing but good to say about these mics and just want them to be somewhere they can be put to good use. If you check my feedback you will find I am a reliable ebayer with 100% rating! Shipping is to the lower 48 ! !