4Call K502J25 2.5 Corded Headset with Noise Canceling Mic for Polycom Cisco Linksys SPA Grandstream Panasonic Gigaset &amp; Zultys Office IP Telephone &amp; Cordless Dect Phones with 2.5mm Headphone Jack<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> WORKS ONLY FOR PHONES LISTED IN DESCRIPTION， BUY ONLY WHEN YOU HAVE ONE OF THE PHONES LISTED. CONTACT US FOR GUIDE IF YOU ARE NOT SURE ABOUT YOUR PHONE COMPATIBILITY </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41-n3ziP-xL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41iI3sXg8BL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/3189rshBmoL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51F0Bpd8BRL.jpg" noproxy>