Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. Both models feature noise cancellation, helping reduce background noise for a more immersive listening experience. The frequency response differs (22 Hz - 18000 Hz vs 20 Hz - 18000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Beyerdynamic DTX 350 P and Beyerdynamic DT 231 PRO are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. There is a noticeable difference in weight (131 g vs 140 g), which may affect comfort during extended use. 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. Both headphones are equipped with capable drivers that deliver balanced sound output suitable for music, calls, and entertainment.

Verdict: Choosing between Beyerdynamic DTX 350 P and Beyerdynamic DT 231 PRO depends on whether you value better sound, longer battery life, or enhanced features.