Delegate earphone (DH13A) is specially designed for the best use with RX106 receiver. The single ear-cup design relieves the pressure on the audience’s ears in case of hours of usage, and also for better hygiene. The internal impedance is 300 ohm, so power consumption is minimized. It is highly recommended to use DH13A earphone with RX106 receiver whenever possible

Delegate headphone (DH18) is designed with light weight & extendable band.  It is double-sided earphone that Pro-Sys ICS provides.  The internal impedance is maintained at 300ohm to minimize power consumption.