Using dust-proof stainless steel mesh and high-quality stainless steel base design, make perfect voice Collection.

 Built-in two high-grade imported mi head, effectively remove noise environment.

 Using Dolby noise reduction technology

 Built-in the United States imported combination chip, and effectively suppress echo.

 Wide dynamic mining sound, low background noise

 Apply to prison, male, inspection, method, trial system and various charges hall.

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

 Electric current: 20mA

 Frequency range: 100-100K Hz

 Apply to video recorders such as HIKVISION, dahua, hanbang. 

 Pickup range: 10-150 Square meters