Impedance levels vary (32 ohms vs 32 Ohms), which can affect compatibility and audio output when used with different devices. The frequency response differs (18 - 18000 Hz vs 30 Hz - 16000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. From a usability standpoint, both models provide a reliable and premium headphone experience. The driver size differs between the two (40 mm vs NA), which can influence sound depth, bass response, and overall audio clarity. Sennheiser HD 202-II and Koss CS95 offer different noise cancellation capabilities (No vs NA), which can impact how effectively they block external noise. There is a noticeable difference in weight (130 g (without cable) vs NA), which may affect comfort during extended use. If you're comparing Sennheiser HD 202-II and Koss CS95, both models offer a strong combination of sound performance, comfort, and modern wireless features. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel.

Verdict: Both models are competitive, and your decision should be based on your usage needs and preferred features.