Our editors hand-pick related products using a variety of criteria: direct competitors targeting the same market segment, or devices that are similar in size, performance, or feature sets.
It terms of sound quality the M2 is a superb device, able to deliver a wide range of file formats in exquisite detail. There are a few issues, but these are more to do with general usage, so if you prioritise sound above all else you may be able to forgive the M2 its trespasses.
Pros:
Cons: