Great way to have hands free communication in full duplex between 2-6 pepple. she needed a 1/2 size so I rounded down instead of up (my fault), but shell get plenty of wear on these before I buy her another pair. Pros:-Very lightweight! Ordered and received and I was very pleasantly surprised by the sound quality of the Sony and without reservation find that it is a better speaker than the Bose. Pros:Perfect balance of firmness and cushiony feeling like a superior hotel pillow. My big toe touches the top a bit but I can scoot it back, but maybe the sole will mold to my foot if I let it be. The positives:Battery life and cameras are outstanding. The adjustable width was simply great. Das Ding ist wahrlich kein Bluetooth Speaker für den Musikgenuss. The part that goes around my ear is a little big due to me having smaller features than probably an adult male, but it just means I have to readjust them a little during my workouts.