Key Differences

The frequency response differs (5 - 35.000 Hz vs 5Hz - 30KHz), which can influence how well the headphones reproduce lows, mids, and highs. Impedance levels vary (250 ohm vs 32 ohm), which can affect compatibility and audio output when used with different devices. Beyerdynamic DT 990PRO and Beyerdynamic MMX 150 are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. The driver size differs between the two (NA vs 40 mm), which can influence sound depth, bass response, and overall audio clarity. Beyerdynamic DT 990PRO and Beyerdynamic MMX 150 offer different noise cancellation capabilities (NA vs ‎Sound Noise Isolation), which can impact how effectively they block external noise. 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. There is a noticeable difference in weight (250 g vs 304 GM), which may affect comfort during extended use.

Verdict: Choosing between Beyerdynamic DT 990PRO and Beyerdynamic MMX 150 depends on whether you value better sound, longer battery life, or enhanced features.