Impedance levels vary (32 Ohms vs 100 Ohms), which can affect compatibility and audio output when used with different devices. Both headphones are equipped with capable drivers that deliver balanced sound output suitable for music, calls, and entertainment. Both models feature noise cancellation, helping reduce background noise for a more immersive listening experience. Beyerdynamic DTX 910 and Koss SB45 are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. There is a noticeable difference in weight (180 g vs NA), which may affect comfort during extended use. The frequency response differs (15 Hz - 23000 Hz vs 18 Hz -20000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. From a usability standpoint, both models provide a reliable and premium headphone experience.

Verdict: Choosing between Beyerdynamic DTX 910 and Koss SB45 depends on whether you value better sound, longer battery life, or enhanced features.