Sony MDR-EX31BN vs Sennheiser MM 30i – Full Comparison & Verdict (2026)

- Wireless Stereo Dynamic In-Ear Headset - 13.5mm high sensitivity driver - Hybrid silicone rubber earbuds (S,M,L) supplied fitting and long-term wearing comfort - Bluetooth Power Class2, Noise Cancelling set Bluetooth - Output :- Bluetooth power class2 - Maximum Communication Range :- Line of sight approx. 30ft (10m) - Frequency Band :- 2.4GHz band (2.4000GHz-2.4835GHz) Microphone - Unit/Type :- Electret Condenser - Directivity :- Omnidirectional Microphone - Frequency Range :- 100Hz - 4,000Hz General - Type :- Closed, dynamic - Power Source / Battery Type :- Built-in Li-ion Rechargeable Battery - Battery Life :- (NC ON) Approx. 9.0 Hours, (NC OFF) Approx. 10.5 Hours - Battery Charging Time :- Approx. 2.5 Hours

- Smart in-line remote control with microphone â€“ change the volume, control your music-playing options, answer or end calls and activate Voice Control â€“ all from a sleek built-in unit - Feel the beat â€“ thanks to bass-driven Sennheiser sound - Effective noise blocking â€“ ear-canal design for effective passive attenuation of ambient noise - Comfortable custom fit â€“ 3 sizes of ear sleeves (S/M/L) supplied - Made for the latest generations of iPod, iPhone and iPad* - 2-year warranty

Key Differences

Sony MDR-EX31BN and Sennheiser MM 30i are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. Impedance levels vary (16 ohm (1KHz) vs 16 Ohms), which can affect compatibility and audio output when used with different devices. There is a noticeable difference in weight (Approx 34g vs 32 g), which may affect comfort during extended use. The driver size differs between the two (13.5mm vs NA), which can influence sound depth, bass response, and overall audio clarity. The frequency response differs (20 - 20,000Hz vs 17 Hz - 20000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Overall, both headphones are feature-rich and cater to users looking for a combination of sound quality, comfort, and wireless convenience. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. Sony MDR-EX31BN and Sennheiser MM 30i offer different noise cancellation capabilities (Yes vs NA), which can impact how effectively they block external noise.

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

Top Differences

Noise Cancelling: Yes vs NA
Driver Size: 13.5mm vs NA
Weight: Approx 34g vs 32 g
Impedance: 16 ohm (1KHz) vs 16 Ohms

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Key Differences

Top Differences