Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. Sennheiser HD 202-II and Koss CS95 offer different noise cancellation capabilities (No vs NA), which can impact how effectively they block external noise. Impedance levels vary (32 ohms vs 32 Ohms), which can affect compatibility and audio output when used with different devices. The driver size differs between the two (40 mm vs NA), which can influence sound depth, bass response, and overall audio clarity. Overall, both headphones are feature-rich and cater to users looking for a combination of sound quality, comfort, and wireless convenience. The frequency response differs (18 - 18000 Hz vs 30 Hz - 16000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. 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.

Verdict: Choosing between Sennheiser HD 202-II and Koss CS95 depends on whether you value better sound, longer battery life, or enhanced features.