Key Differences

The frequency response differs (5 Hz - 35000 Hz vs 20Hz - 20KHz), which can influence how well the headphones reproduce lows, mids, and highs. There is a noticeable difference in weight (250 g vs 10 GM), which may affect comfort during extended use. The driver size differs between the two (NA vs 8.5 mm), which can influence sound depth, bass response, and overall audio clarity. Impedance levels vary (250 Ohms vs 12 ohm), which can affect compatibility and audio output when used with different devices. Beyerdynamic DT 990 PRO and Audio Technica ATH-E40 are premium wireless headphones designed to deliver high-quality sound along with advanced features like noise cancellation and long battery life. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. Beyerdynamic DT 990 PRO and Audio Technica ATH-E40 offer different noise cancellation capabilities (NA vs Sound Isolation), which can impact how effectively they block external noise. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel.

Verdict: Choosing between Beyerdynamic DT 990 PRO and Audio Technica ATH-E40 depends on whether you value better sound, longer battery life, or enhanced features.