It’s a good product and its compacted size and lightweight is great for travel.
You cannot use the app Sleeplus in the link of the user manual. The link needs to be updated on the user manual; However, you can look for the app named VVFLY YA50 on a web browser. I have an iPhone and with the VVFLY YA50 app, I can pair it onto my iPhone.
One thing, though. The machine itself is quiet; The mask is a bit noisy but acceptable.
Very well design and fit my daily use. The only drawback is I found it very difficult to fit my 11 inch IPad Pro. It would be great if you can make it a little bit bigger to fit iPad 11 inch