The Aiphone DE-UR is a door station adaptor for TD-H that can add a door station, audio or PanTilt to TD Phone Selective Call Intercom. The DE-UR features a selectable call tone and normally open dry contacts for door release. The color of this item is white. See Aiphone TD-H Series information below and the Aiphone pdf files under the "Resources" tab above. If you have any questions, call us at 800-221-8227. Click "Add to Cart" to purchase the DE-UR door station adaptor now.