A:AnswerI listen to audio books and music. The sound is fine. Not as good as my Bose headphones and I would not call it high end sound but will do in a pinch.
A:AnswerThis will works perfectly with truck driver. I got this product for my husband who is on the road a lot so I don't have to worry about him when I called him.
A:AnswerIf you meant the Jabra STEALTH Bluetooth, I can turn the volume up by simply using the volume buttons on my iPhone when the Bluetooth is on and connected to my phone. The volume levels will show up on the screen of the phone. FYI, I have an iPhone 6 if that helps.
