Description

 Imported high fidelity low noise processing chip and special mini microphone,

 Automatic gain control circuit, Clear voice, low noise.

 Using the decoding technology, effectively eliminate interference and echo.

 The unique design of the" electronic noise dynamic closed loop suppression circuit" can eliminate" hiss" electronic noise, realize perfect radio

 low price, high cost performance and Suitable for large-scale installation

 Monitor range 10-100 square meters.

 Apply to Banks, telecommunications, charge under the environment of the counter use.

Parameter

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

 Electric current: 20MA

 Frequency range: 100-100 KHZ

 Output impedance: 600 ohm non equilibrium

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

 Apply to sea kang, dahua, hanbang and video recorder