The frequency response differs (20 Hz - 25000 Hz vs 30 - 20.000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Overall, both headphones are feature-rich and cater to users looking for a combination of sound quality, comfort, and wireless convenience. Impedance levels vary (35 Ohms vs 400 ohm), which can affect compatibility and audio output when used with different devices. There is a noticeable difference in weight (NA vs 283 g), which may affect comfort during extended use. 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. Koss SP330 and Beyerdynamic DT 108 Series are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. Both headphones are equipped with capable drivers that deliver balanced sound output suitable for music, calls, and entertainment. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel.

Verdict: Choosing between Koss SP330 and Beyerdynamic DT 108 Series depends on whether you value better sound, longer battery life, or enhanced features.