If you're comparing Beyerdynamic Custom Street and Koss HB79, both models offer a strong combination of sound performance, comfort, and modern wireless features. The frequency response differs (20 Hz - 20000 Hz vs 30 Hz - 15000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Impedance levels vary (38 Ohms vs Self-powered Stereophone), 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 support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. There is a noticeable difference in weight (245 g vs NA), which may affect comfort during extended use. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. Both models feature noise cancellation, helping reduce background noise for a more immersive listening experience.

Verdict: Choosing between Beyerdynamic Custom Street and Koss HB79 depends on whether you value better sound, longer battery life, or enhanced features.