Bogen 10 Watt Commercial Paging System with Amplifier Mixer Speaker and Mic AUX muting by external contact closure for push-to-talk mic's (included) Weather resistant 6 watt 8 ohms speaker The microphone is a cardioid desktop paging microphone designed for all commercial paging applications. Features a push-to-talk and lift-to-talk button with a locking bar for long announcements. The dynamic element features a cardioid polar pattern that minimizes off-axis feedback and noise. The 7-foot output cable features 4-conductor 2-shield lead wires for connecting to the paging amplifier Telephone input available for telephone paging applications. MADE IN USA. 2 Year manufacturer warranty. Thermal protection and electronic shutdown