The frequency response differs (10 Hz - 40,000Hz vs 6 Hz - 38000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Denon AH-MM300 and Sennheiser HD 560S are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. Impedance levels vary (32 Ohms vs 120 ohm), which can affect compatibility and audio output when used with different devices. There is a noticeable difference in weight (195 g vs 280 Gm), which may affect comfort during extended use. The driver size differs between the two (40 mm vs 38 mm), which can influence sound depth, bass response, and overall audio clarity. 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. Denon AH-MM300 and Sennheiser HD 560S offer different noise cancellation capabilities (NA vs AMBIENT), which can impact how effectively they block external noise.

Verdict: Both headphones offer strong performance, and the right choice depends on your priorities such as battery life, comfort, and noise cancellation.