Sennheiser PC 31-II vs Sony MDR-XB55AP – Which One Should You Buy? (2026)

- Sennheiser sound â€“ quality speakers deliver music, movies, games and internet calls in rich stereo sound - Noise canceling clarity â€“ the microphone filters out ambient noise, keeping your voice clear and easy to understand - Fully flexible boom arm â€“ adjust the microphone for optimal voice pick-up and comfort - Light and comfortable â€“ with the lightweight headband, itâ€™s easy to forget you are even wearing a headset - Easy to use â€“ the headset easily plugs into your laptop or desktop computer - 2-year warranty

Inline remote and mic for hands-free calls. Powered Bass Duct++ for extra deep bass. Portable Headphone Amplifier. L-shaped gold-plated 4-pole mini plug. Lightweight for ultimate music mobility. Smartphone-compatible with in-line remote mic. EXTRA BASS for club-like sound. Headphones made for Electronic Dance Music. 12 mm neodymium drivers for powerful, balanced sound. The cable has a serrated design to resist snags and tangles, keeping your headphones knot-free.

Key Differences

The driver size differs between the two (NA vs 12 mm), which can influence sound depth, bass response, and overall audio clarity. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. The frequency response differs (40 Hz - 18000 Hz vs 4 Hz - 24,000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Both models feature noise cancellation, helping reduce background noise for a more immersive listening experience. Impedance levels vary (32 Ohms vs 16 ohm), which can affect compatibility and audio output when used with different devices. There is a noticeable difference in weight (90 g vs 8 gm), which may affect comfort during extended use. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. Sennheiser PC 31-II and Sony MDR-XB55AP are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel.

Verdict: Both models are competitive, and your decision should be based on your usage needs and preferred features.

Top Differences

Driver Size: NA vs 12 mm
Weight: 90 g vs 8 gm
Impedance: 32 Ohms vs 16 ohm

Compare Sennheiser PC 31-II with:

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Key Differences

Top Differences