This is a combo speaker/microphone that allows 2-way communication between a central station or for checking in on elderly relatives. Instead of calling you on the phone to verify an alarm; the central station can communicate with you via the control panel.
Specifications:• Operating Voltage: Powered from M1TWA, M1TWI, or M1EZ8TWI
• Current Draw. 5mA each
• Speaker Impedance: 8 ohms
• Speaker Rating: 20 Watts Nominal
• Size: 4.25" x 4.25" x 2.13"
• Color: White