Je viens de recevoir le système et je peux vous dire qu’il est tout simplement fabuleux pour le prix. The Transmitter Mono/Stereo configuration is used as follows: there is only one output from your mixer (connected to either the L or R input of your transmitter).This signal will go to both left and right earphones. High-fidelity sound with clean, articulate mix allows performers to hear themselves clearly at lower volume XLR loop output (true pass-through) connects signal to mixing console, additional IEM system or recording device with no signal degradation

ANLEON S3 Wireless In-Ear Monitor UHF Stereo Original For ANLEON S3 Wireless In-Ear Monitor UHF Stereo

human people are not able to hear/recognize the signal of which frequecy is more than 15KHz. Audio equipments should have low pass filter, but we found that some of audio interfaces not cut/eliminate these ultra high signals, that cuase noise when connect to S3.