I've had them for about a week now. My other Bluetooth headphones are the Jaybird X3, but I also have Audeze LCD 2 Classics headphones. Listen to this Sennheiser on Tidal's aptX with no loss. Compared to both, they are of an enormously low level. The resolution is also exceptional considering the price and the fact that it's Bluetooth. (I can't compare more to Audeze though as it's a completely different price/product.) Bottom line, the sound quality is fantastic. My biggest issues with them are 1) the app (Android) and 2) convenience. The headphones themselves connect securely to my phone and I have had no issues with them. However, the Sennheiser app cannot find it even after following the basic steps it suggests. That's fine as they retain their functionality, but if you want to adjust the equalizer, for example, you won't be able to do that. Hopefully this can be fixed fairly quickly with an update! In terms of wearing comfort, it is by no means uncomfortable, but my ears start to hurt after a few hours. It's not a big deal since the battery only lasts 3.5 hours anyway, but it's worth noting. Although I may have small ears. All in all great wireless headphones! I haven't had any major issues with them and I love the sound. They are very portable and ideal for mobile use.
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