Solid unit, in good working order. Some minor cosmetic signs of use but nothing much! The Shure PSM600 IEM Transmitter and Receiver is a professional audio equipment set designed for musicians and DJs. With a frequency range of 856.950 – 860.400 MHz and two channels/frequencies, this system offers clear and reliable sound monitoring. The stereo feature enhances the listening experience, while the UHF frequency bands ensure interference-free transmission. Made in Mexico by the trusted brand Shure, this in-ear monitor system is a popular choice among professionals in the music industry. IEC (kettle lead) not supplied.