Bose Sleepbuds II I was able to connect them a few times, but the connection on the right earbud is unstable, so I'm listing them as junk. They are immediately recognized on the app, but it doesn't proceed from there. Even if they successfully connect to the app, the right side shows only 1% charge. The unstable connection is likely due to insufficient charging. The charging light on the case comes on for both sides. The left side connects without any problems and charges to 100%. Since the settings can be changed when both earbuds are connected to the app, I've put them in Phone-Free mode (as shown in the 10th image, the sound is SAND, volume around 50%) as a precaution, considering the risk of the right earbud completely failing to connect. You may have your own preferences, but I've set it to the most recommended masking sound. I can't guarantee it, but if you try connecting them a few times and successfully connect to the app, you can change the volume or switch to your preferred masking sound. As mentioned above, because they are in Phone-Free mode, the masking sound will play as soon as you take the earbuds out of the case, even without the app or without connecting to the app, so you can use them immediately. However, the masking sound will only play from the left earbud, so if you use the right earbud as a soundproof earbud in the Bose specification, the sleep earbud function will still be fulfilled by wearing both earbuds. Please understand the above. Also, as shown in the images, the charging cord and ear tip sizes 1 and 3 are new and unopened. Also, opened ear tip sizes 1 and 3, which were opened for trial fitting, are included. One used ear tip size 2 will be attached to the main unit and shipped. Also, a hard-to-find dedicated cover (black) will be included.