1. Compatible Models: Designed specifically for E65 (E65BTNC), Live 650 (650NC 650BTNC), Live 660 (660NC 660BTNC), and Duet NC Wireless Headphones. Please verify your headset model before purchasing.2. All-Day Comfort: Featuring a unique cooling-gel layer beneath breathable Ice Silk fabric, these earpads effectively absorb sweat and keep your ears cool, even during extended wear. The soft, stretchable surface minimizes friction, ensuring a comfortable fit for long listening sessions.3. Enhanced Sound Isolation: Our ergonomic earplugs utilize high-density memory foam to create a snug fit, blocking out external noise. Enjoy a peaceful listening experience, whether you're at home, commuting, or in a busy environment.4. Easy Installation: Upgrading your headphones is a breeze. Simply remove the old earpads and replace them with new ones in just a few minutes. The secure fit ensures they wont come off easily, giving your headphones a refreshed look and feel.5. Practical Applications: Perfect for everyday use such as listening to music at the gym, enjoying podcasts during your commute, or immersing yourself in audiobooks at home. These earpads enhance your listening experience in various settings, providing comfort and sound quality.