Description

 Built-in digital processing circuit, multistage dynamic noise reduction processing.

 Clear voice, low noise

 Using echo eliminates technology, Reduce echo.

 The appearance of pure copper, streamline design, reveal beautiful and durable.

 The bullet type pure copper appearance, can effectively shield at outside electromagnetic interference

 AGC automatic gain circuit

 Monitoring range: 50 square meters.

 Applicable to public security organs, trial, supervisor of the warehouse, divisions, police station, telecommunications, bank Treasury departments audio monitoring.

Parameter

 Voltage: linear power supply (transformer) DC 9-12V

 Electric current: 20mA

 Frequency range: 100-100K Hz

 Output impedance: 600 ohm non equilibrium

 Transmission distance: 3000 meters

 Directivity:Omni-direction

 Signal-noise rate: 60db

 Sensitivity: -40db

 Connecting mode: red (power+) black (public) white (audio+)

 Apply to video recorders such as sea kang, dahua, hanbang.