They do not have a wide toe box, which was a concern for me. Needs a separate towball, which would not be a big deal, but it needs a nonstandard towball. Thick and engulfs my ear without applying pressure. This is marketed as "Noiseless". Did not reorder smaller size. As far as Alexa goes you need to go into the Alexa app first and add the Bose device before you can use the Alexa voice control. There are some other, cheaper options like the Aiwa Exos-9 (100 decibels, $299), the JBL Boombox (101 decibels, $499), the ION Audio Road Warrior (113 decibels, $269), the Sony GTK-XB90 (104 decibels, $298) or the ECOXGEAR Eco Boulder (112 decibels, $129) but they either are heavier, arent very portable, arent waterproof, limit their volume when they arent plugged in, distort above 80% volume, or a combination of these things. This leaves me with around 15 seconds of silence. this size 9 sandal fit my flat foot perfectly. I also like the bungie-type ties that I a) dont have to retie every time I wear them and b) dont come untied at inopportune times to have me tripping on the laces.