Excerpt: These are the most luxuriant in Sennheiser' s apt-X compatible range of Bluetooth offerings: bigger, comfier, with better noise-isolating. You also get its SRS surround mode; this spreads the sound but loses focus and punch. Otherwise, these cans are exciting, insightful and clear. The addition of an optional apt-X dongle improves things: treble frequencies are smoothed out, while lows are tightened, making for a more agile, musical sound.
Pros: Comfy, good noise isolation, insightful, clear sound