Really sad this happened, within an hour of me finally receiving these I tried to change out the medium earbuds to the small ones to see which fit better and trying to pull off the medium ones, one of them just fell apart.
There is a lot of friction between the eartip´s tube and the earphone nozzle. Ideally you should rotate the tip while gently pulling off.
We can send you new tips. Could you please contact us so that we get your contact details?
https://www.optoma.com/us/support/contact-us/
- Jyri/NuForce