Sound quality is excellent. Connects with my Moto Q with no problem what-so-ever. The headset works very well as a handsfree unit, although when I'm outside people have a hard time hearing me. Connection between the headset and phone gets a little broken up when the phone is in my pocket while walking the dog outside. I use the headset and listen to Sirius radio (web based on my Q) at the gym and its great.Over all I highly recommend this product.