Sony MDR-EX31BN vs Beyerdynamic MMX 102 IE – Which Headphones Are Better? (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

- Impressive sound due to neodymium HD acoustic drivers - Powerful and precise bass response - Remote control with high-quality hands-free microphone - Compatible with portable devices with mini jack socket (3.5 mm) - Supplied with 3 pairs of ear tips in different sizes, cable clip, - VoIP adapter and case with a quick acting closure - High-quality hands-free microphone - High-resolution, crystal clear sound - Fascinating bass - HD Neodymium acoustic transducer - Refined lightweight metal housing

Key Differences

Sony MDR-EX31BN and Beyerdynamic MMX 102 IE are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. Sony MDR-EX31BN and Beyerdynamic MMX 102 IE offer different noise cancellation capabilities (Yes vs NA), which can impact how effectively they block external noise. Impedance levels vary (16 ohm (1KHz) vs 23 Ohms), which can affect compatibility and audio output when used with different devices. There is a noticeable difference in weight (Approx 34g vs 13 g), which may affect comfort during extended use. 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. 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 10 Hz - 23000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. From a usability standpoint, both models provide a reliable and premium headphone experience.

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 13 g
Impedance: 16 ohm (1KHz) vs 23 Ohms

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Key Differences

Top Differences