they dont shut off external sounds (which I guess can be a downside in certain environments, but excellent for usage in a usually-quiet home). The shipment is packed well with each part individually wrapped. Even better is the fact that is is not as costly as the Plantronics wireless headset I am using at my other (main) office. PS: its not hemmed all the way up to the armpits like other things! So easy to install! I dont know how many pairs of these sandals I have owned, but they are wonderful sandals! No sound from speaker with Alexa Dot or Alexa Echo. basically if u r using hdmi arc then continue using it. However, within a day of using the product I noticed the audio cut out whenever I would turn my head to the left. I buy these for my boyfriend he would go deaf without them because of his wax buildup, they are the only thing safe enough that do a great job.