I was initially pleased with the first pair of earphones that I received, however that lasted as long as a couple of months. Bought it because I knew I wanted a wall-mounted power tower. Good comfortable soft sole and decent tread on outer sole - the only thing I noticed today - walking in Kuala Lumpur after rain - bit slippery on concrete surfaces. I bought these for my daughter for school. they didnt sound "that far" off from each other. This is not really the headsets fault, more a weakness of bluetooth and how stupid Switch online features are. The strap pulled hard enough on the clip to cause it to rotate 180 degrees thus losing contact with the strap teeth. Velcro is where it’s at. I noted that the book was originally printed in 2010, & this ebook version a few years later, but it could do with a further proofread as I came across a few typos. And the battery.