Audio panel for SMC intercom systems. Metallic finish, with stainless steel front and call button. Flush mount. Includes high-sensitivity omni-directional microphone and moisture-resistant 4W power mylar speaker. It is supplied with a compact metal case, a loudspeaker internally protected by a metal grill and special Allen screws to fix the front plate to the chassis. 24 V DC power supply. Consumption 25 mA / 230 mA. Dimensions 128 x 110 x 5 mm.