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.
Standard control and compatibility options complete a headphone that justifies its price.
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