Sennheiser Accentum Wireless Over Ear

I can get carried away watching YouTube music videos like the artist Weeknd on my LG 75 inch TV 2021 model and Apple Iphone 16e using Bluetooth with the wireless headphones, and whenever I want to go to the bathroom downstairs while wearing the headphones, it sounds like I got a home theatre stereo system with me anywhere in the 2-storey rented house. I don't use the app, I just simply increase the volume that gives a balanced treble and bass sound without that earthquake-like rumble shaking noise. It's no wonder the portable CD I had for several years has become old technology because Bluetooth technology gives you freedom to roam the house without cables. A friend bought the headphones as a gift to me