Sennheiser HDR 165 - WIFI interference?

[DoubleSix]

Hi All,

Got a set of these wireless headphones for Xmas.

https://en-uk.sennheiser.com/rs-165

Great for me to watch TV if the Mrs gets an early night... so I thought.

However, I'm getting static when streaming to smart TV (Amazon Prime). This is a frustration as that is my main source of viewing these days! It's low level, but present when navigating menus etc (assuming when data is being transmitted) and every 20-30 secs when viewing.

Not much on the web, would have expected some others to have had this same issue as not an unusual application and a fairly common model headphone.

Anyone else has such an issue or know of a solution?

NB: I'm using Google WIFI and both this and the headphones claim to search for unused bandwidth.

Edited by DoubleSix on Wednesday 27th December 13:16

[DoubleSix]

Despite the flood of technical insight on here , I've sorted it...

It was the TV.

For some reason the onboard TV wifi receiver was sending the static via 3.5mm jack.

I tested it on the two other TVs in the house an no issue at all.