Upgrade From The OEM - The sound of your headphones will remain unchanged, maintaining high audio quality. Noise isolation is improved due to a better seal around the ear. Better Quality - Made with higher-quality materials compared to the original RS 175 ear pads. The inner foam is denser and recovers more slowly than OEM ear pad foam, providing a more premium look and feel. Soft And Comfortable - Soft leather replacement pads offer enhanced comfort over the stock vinyl composite cushions. Easy to clean and maintain, unlike the original felt pads that absorb moisture and collect lint. Perfect Fit - Compatible with Sennheiser RS 175, RS 185, RS 195, RS 165, HDR 175, HDR 165, HDR 185, HDR 195, TR 175, TR 165, TR 185, and TR 195 models. (TR refers to the transmitter, HDR refers to the headphones, and RS refers to the complete system)