Nortel Norstar M7000 Series Black Amplified Handset<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Handset has a volume control wheel so you can adjust the volume at your convenience.</li><li>Works with Nortel M7000 series. M7100， M7208， M7310， M7324</li></ul></div><img src="http://ecx.images-amazon.com/images/I/2184nOQqQyL.jpg" noproxy>