Over bluetooth on a Macbook, these are awful - the microphone is muffled and the sound quality poor. These are not your "bass heavy" Beats-style headphones. Im expecting these to fall off the wall given the reviews I should have read before buying these. If your into bike repairs, do your self a favour and buy this, you wont be sorry. Could use more bass though. It won’t be coming off during flight. It just goes to show the precision of Apple design. good coverage over PJs when guests are here. Think of a C clamp on a 2x4. Once you are done, this thing packs up so compactly (see photo) and even has wheels to roll it into the garage.