Connecting an in-ear monitoring system?

Hello! …..everything short and sweet… I have the following mixer: https://www.amazon.de/dp/B0039PPW60?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1 and the following "IEM" https://www.amazon.de/dp/B0B9W5S4N8?ref=ppx_yo2ov_dt_b_fed_asin_title IEM transmitter in Aux Sends 1 & 2 or Phones output? The IEM system should be kept as simple as possible. That means no separate, adjustable mixes… so is this configuration of "one transmitter in one of the two…

Wiretapping security of monitoring systems?

I wonder if in-ear monitoring systems allow anyone who sets the frequency with a receiver to hear what is happening. Let me take the following specific products as an example: https://www.thomann.de/de/the_t_bone_iem_d2.4_quattro_bundle.htm or https://www.amazon.de/Debra-Monitoring-System-Professionelles-560-590Mhz-Sender-Live-Aufsicht-1-taschensender-mit-Sender/dp/B0CGTQF178/ref=sr_1_2_sspa?c=ts&dib=eyJ2IjoiMSJ9.2E7_R0 XR6bMmZT1Y8mnzNBIFbsMuu5pe-vk15KKjbCxCl8Z5setPrIsdzAA8Ekr9yDOkh-J9W1M0cQB0xqojmGBVQfjb3QJ CZeYwFR2f_sv7C3iSeZDFja35dDRluUe46tAgk-M_EnGpYRUtT0SVb9OM-Qa61LM7FENvFLvZlHUrOu7hhKwYMq07C _9NV6Y2wdZENe6s02ySHTjyPSuN8ShhmgBPj-20rstC58m2a4GaHjUIPcDzwxCCD9baRuPUVf6hHPXm_jbeJ7w5T5 yMWagl5k0N9dxDHmZrxzRUFsk.Ve5qDMNZoTO8l11w1btk2joiMFRQTw9YbO1FnN1Jzhg&dib_tag=se&keywords= In-ear monitoring&qid=1717166628&s=musical-instruments&sr=1-2-spons&ts_id=412478031&ufe=ap p_do%3Aamzn1.fos.335e368b-29e8-4542-bb58-939a88195e78&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1 Intuitively, I would assume that someone within range of my transmitter (e.g., my neighbor) could…