2 button 3000 series audiophone with electronic call tone with mute switch

The 3112 audiophone incorporates a 3 level electronic call tone input, lock release button and spare service button. It also includes a mute switch for the electronic call tone input. For use on traditional 3+1 and 4+1 audio systems including 4K series, 8K series, VR4K series and VR120 series audio kits.

• Includes lock release button, spare service button and mute switch (for call tone input only).
• 3 level electronic call tone input.
• Manufactured from impact resistant ABS plastic.