The driver size differs between the two (NA vs 40 mm), which can influence sound depth, bass response, and overall audio clarity. There is a noticeable difference in weight (NA vs 365 Gm), which may affect comfort during extended use. Impedance levels vary (35 Ohms vs 44 ohm), which can affect compatibility and audio output when used with different devices. Overall, both headphones are feature-rich and cater to users looking for a combination of sound quality, comfort, and wireless convenience. Koss SP330 and SHURE SRH840 offer different noise cancellation capabilities (NA vs CVC), which can impact how effectively they block external noise. If you're comparing Koss SP330 and SHURE SRH840, both models offer a strong combination of sound performance, comfort, and modern wireless features. The frequency response differs (20 Hz - 25000 Hz vs 5 Hz - 25000 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. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel.

Verdict: Choosing between Koss SP330 and SHURE SRH840 depends on whether you value better sound, longer battery life, or enhanced features.