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. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. There is a noticeable difference in weight (250 g vs NA), which may affect comfort during extended use. Beyerdynamic MMX 2 and Koss UR55 are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. Impedance levels vary (32 Ohms vs 36 Ohms), which can affect compatibility and audio output when used with different devices. From a usability standpoint, both models provide a reliable and premium headphone experience. Both headphones are equipped with capable drivers that deliver balanced sound output suitable for music, calls, and entertainment. Both models provide a wide frequency range, delivering a balanced audio experience across different types of content.

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