AKG N60NC Wireless noise-cancelling headphones review: They cut the noise, not the music | TechHive
Amazon.com: IPD IPH-160 Monaural NC Headset with 2.5mm Jack(2 Black Bands) for Ciso SPA,Panasonic KX and Other Cordless Dect Phones with 2.5mm Headset Jack Port. No Smart Phone use. : Electronics