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.
Exactly what I needed ! Works perfect for me to have my phone with me and it’s very convenient for me to keep my hands free. Definitely would recommend to family and friend.