These are supposed to be the best of both worlds next to the HD 598s:  I would NOT recommend at all buying this headset from my personal experience. I bought a 7 wide and they fit like a glove. In the images they seem sort of cute but not super expensive, in person they look AND ARE plastic and cheap. No complaints does job fits my 2019 gear buds Samsung Increíble, muy buen producto , de muy buena calidad. He should have left it at the top of our driveway by our house like everyone else does. Tuck that junk in! This Sennheiser adapter has the same thread pitch as the 3. I changed the earbud foam pads to the smallest ones provided.