- Using high-fidelity/low noise processing chips,voice clear,low noise;
- Operating-voltage:6-12VDC;
- Frequency response: 100-5500Hz;
- The adjustable sensitivity; bug range: 5-100 square meters;
- Concave design, little echo.
- Voltage: linear power supply (transformer) dc 9-12 v.
- Electric current:20MA
- Frequency range: 100-100 kHz
- Output impedance: 600-ohm nonequilibrium
- Connecting mode: terminal.
- Weight:32g ( Size: 70mm*70mm*39mm)
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