NO ONE CAN HEAR YOU OR UNDERSTAND YOU WHEN YOU TALK ON THE PHONE WITH THEM. Using the noise cancelling option will reduce the battery life quicker than when disabled. I love this pillow, and I really love the reasonable pricing also. Goid quality, especially for the price. It is the most sturdy and reliable car phone holder to have, specially when driving over bumpy road. There should be an extra-small because even after rolling them, they still feel too big. The tips are terrible, they should have just went with basic ones because they fall off really easy and they only provide one set of each size so good luck getting new ones (dealbreaker for me)The charger port is uncovered and theyre not water proof-rated. love going to gym with them ! However, that said, the largest earbuds of the SP800Ns have stayed behind in my ears on two removal occasions. While it was a bit of a challenge to assemble, once it was done it worked as advertised.