The frequency response differs (18 - 21000 Hz vs 5 - 25,000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. In general, both options are suitable for everyday use including music, calls, travel, and work-from-home scenarios. Impedance levels vary (32 ohms vs 40 ohm), which can affect compatibility and audio output when used with different devices. Sennheiser RS 180 and Sony NWZ WH505-B offer different noise cancellation capabilities (No vs NA), which can impact how effectively they block external noise. The driver size differs between the two (NA vs 40 mm), which can influence sound depth, bass response, and overall audio clarity. Sennheiser RS 180 and Sony NWZ WH505-B are premium wireless headphones designed to deliver high-quality sound along with advanced features like noise cancellation and long battery life. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. There is a noticeable difference in weight (204 g (without battery) vs 313 g), which may affect comfort during extended use. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel.

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