Definitive Technology In-Wall RLS II In-Wall Speaker (Single， White)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Single in-wall speaker</li><li>Equipped with two 6.5-inch bass/midrange and two 6.5-inch pressure-driven bass radiators</li><li>Frequency response: 22Hz - 30kHz</li><li>Equipped with one 1-inch pure aluminum dome tweeter</li><li>Outer flange size: 8.13 W x 29.75 H x 3.88 D inches</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41WUXm3eNhL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31tgSfJ6FvL.jpg" noproxy>