Anyone using PET Felt Acoustic Panels?

[LoveEnigma18]

In the search of acoustic treatment for my new home studio room, I came across acoustic panels made of "PET Felt" material. The panels are available in many colours and look like a decent and good looking solution for basic treatment compared to having bare concrete walls.

https://www.auralexchange.com/product/n ... -room-kit/

https://refelt.nl/product/acoustic-panels/

Does anyone have any idea about this material and panels made from them?

The problem is I don't have enough time and situation to go DIY route, so something that works decently well would make me happy.

I intend to record only my vocals as far as recording goes, and this new room dimensions are such that I am not getting significant room modes. Also, some stuff I have in my room, like a single bed, a shelf, etc., is helping me to dampen the flutter/reverb a bit.

Any help is appreciated. Thank you!

[LoveEnigma18]

Also, I seem to have lost the test tone file that plays from 20 Hz to 20 KHz logarithmic tones, that too with a pause at each step. It was a long length file. I tried searching online, but haven't got the exact one yet. Any direct link, please?

EDIT: Never mind. Got the files. You can download the .zip file containing 4 audio files from my Google Drive: https://drive.google.com/file/d/1xlkQvo ... sp=sharing

Please let me know if there's a better yet faster way to upload.