The DB-1SD is a sub master station from Aiphone which is capable of offering high quality hands-free communication for increasing efficiency within a working area. The DB-1SD sub master station comes with a door release, hands-free communication, a mute call tone with indicator, as well a call extension sounder and a press and talk button. The DB-1SD sub master station also offers a 2 wire system, an off button, a receive volume control, plus a compact size. This sub master station is user friendly, easy to install, and offers an affordable price to help save money.
