Imported chips, 

 High-fidelity voice, 

 Using the Dolby system, low noise

 Inhibit the response.

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

 Be widely used in trial system of Prisons, police, courts, public security.

 Voltage: linear power supply (transformer) dc 9-12 v

 Electric current: 20MA

 Frequency range: 100-100 KHZ

 Output impedance: 600 ohm non equilibrium

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

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

 Pickup range: 10&mdash 100 Square meters