Key Differences

Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. The driver size differs between the two (NA vs 12 mm), which can influence sound depth, bass response, and overall audio clarity. From a usability standpoint, both models provide a reliable and premium headphone experience. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. There is a noticeable difference in weight (NA vs 3 gm), which may affect comfort during extended use. Impedance levels vary (32 Ohms vs 16 ohm), which can affect compatibility and audio output when used with different devices. Koss UR18 and Sony MDR-EX255AP are premium wireless headphones designed to deliver high-quality sound along with advanced features like noise cancellation and long battery life. The frequency response differs (25 Hz - 15000 Hz vs 5 Hz - 25,000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Both models feature noise cancellation, helping reduce background noise for a more immersive listening experience.

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