LD Systems easy-to-use in-ear monitoring systems with earphones are also available as in-ear wireless systems, with the transmitter and receiver also available separately.
Best IEMS (In Ear Monitor Systems) for Musicians - 2023
The Evolution of In-Ear Monitors – PS Audio
Best IEMS (In Ear Monitor Systems) for Musicians - 2023
In Ear Monitors
Behringer, Product
Ultimate Ears Professional Custom In Ear Monitors – Ultimate Ears PRO
QSC - TouchMix-30 Pro is an amazing in-ear monitor mixer
ASI Audio by Sensaphonics
Sheeran Tour Adds CM-i3 Headset
In Ear Monitors
Group One Limited
An Introduction To In-ear Monitoring
Some more @Taylor Swift in-ear monitor (IEM) audio from the 1989 World
Custom In-Ear Buds: The Case for Getting Serious About Sound