Valentines gift for my husband ! While I?m not a fan of electronic adjustments, the Beo Play app supports the Earset and is super easy to use. It won?t give audio warning when battery is low. I have wide feet, and the strap was still huge around my ankle and widest part of my foot. I bought these to see if they would help my AirPods from hurting my ears. It is extremely loud and very durable. Ive got some nice gear but this guy just doesnt care. Order this item it arrive 2 hour before so super fast shipping very easy to install and compact you dont lose the second outlet works great with Alex It comes with everything you need although I ended up using my own mallet as the wooden mallet that it comes with didnt have enough umph. I just got these this afternoon.