The driver size differs between the two (NA vs 53 mm), which can influence sound depth, bass response, and overall audio clarity. If you're comparing Beyerdynamic DT 280 MK II and Audio Technica ATH-A990Z, both models offer a strong combination of sound performance, comfort, and modern wireless features. The frequency response differs (10 - 30.000 Hz vs 5Hz - 42KHz), which can influence how well the headphones reproduce lows, mids, and highs. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. Beyerdynamic DT 280 MK II and Audio Technica ATH-A990Z offer different noise cancellation capabilities (NA vs Sound 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. There is a noticeable difference in weight (170 g vs 335 GM), which may affect comfort during extended use. Impedance levels vary (250 ohm vs 44 ohm), which can affect compatibility and audio output when used with different devices.

Verdict: Choosing between Beyerdynamic DT 280 MK II and Audio Technica ATH-A990Z depends on whether you value better sound, longer battery life, or enhanced features.