To be considered high-resolution headphones, the pair needs to be able to produce a frequency of at least 40kHz. If a pair of headphones claim to be hi-res, this means they should be able to handle a full spectrum of high-resolution audio without difficulty to ensure that no detail is lost. However, just because headphones claim to be hi-res does not mean they will sound better than headphones which are not considered hi-res. The term hi-res is only a technical specification and does relate to the balance, timing, dynamics, or other features that make headphones produce quality audio. In the end, hi-res headphones have the potential of sounding better than “normal” headphones, but the best way to find your perfect pair is to listen to a variety of them.