Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. JBL Quantum ONE and Beyerdynamic DT 297 PV MK II offer different noise cancellation capabilities (Active vs NA), which can impact how effectively they block external noise. JBL Quantum ONE and Beyerdynamic DT 297 PV MK II are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. There is a noticeable difference in weight (369 gm vs 240 g), which may affect comfort during extended use. Impedance levels vary (32 ohm vs 250 ohm), which can affect compatibility and audio output when used with different devices. The driver size differs between the two (50 mm vs NA), which can influence sound depth, bass response, and overall audio clarity. The frequency response differs (20 Hz - 40000 Hz vs 10 - 30.000 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. Overall, both headphones are feature-rich and cater to users looking for a combination of sound quality, comfort, and wireless convenience.

Verdict: Choosing between JBL Quantum ONE and Beyerdynamic DT 297 PV MK II depends on whether you value better sound, longer battery life, or enhanced features.