Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. The frequency response differs (18 Hz -20000 Hz vs 20 Hz - 20000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. The driver size differs between the two (NA vs 50 mm), which can influence sound depth, bass response, and overall audio clarity. There is a noticeable difference in weight (NA vs 245 gm), which may affect comfort during extended use. Both models feature noise cancellation, helping reduce background noise for a more immersive listening experience. Impedance levels vary (100 Ohms vs 32 ohm), which can affect compatibility and audio output when used with different devices. 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. If you're comparing Koss UR29 and JBL Quantum 200, both models offer a strong combination of sound performance, comfort, and modern wireless features.

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