I had a Blendtec blender that I used twice a day for several years and developed tinnitus over time. So I bought this blender which is a lot quieter. I still leave the room when the blender is operating and wear ear protection because I don’t want my tinnitus to get any worse.  One nice thing about this blender is the top is held down by the plastic enclosure so the top can’t pop off while in operation.