Low Noise Audio Recording Surveillance Sound Monitor Pickup - Silver (6~12V)
US$ 6.56
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- Color: Silver
- Voltage: 6~12V
- Frequency range: 200~10KHz
- Frequency response: 2.5dB
- Rated current: 10mA
- Monitor area: 5~150 square meter
- Output impedance: 600ohm
- Suitable for different types of supervised listening environment, such as bank, prison, examination place etc.
- Comes with English user manual
Dimensions: 1.97 in x 1.77 in x 0.75 in (5.0 cm x 4.5 cm x 1.9 cm)
Weight: 1.62 oz (46 g)
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Sep 2016
Great autio amplifier`. I gave it 5v and it works great. The shielded wire is the mic, the other two are power. instructions are Chinese, but you don't need them. – translate