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F908 Wireless transmitter receiver Covert FM Audio Listening Device Ear voice bug avp031kf908
wireless transmitter receiver instructions
This product adopts the most new imported chips, circuit board design is advanced. The products meet the voice is the most clear, the most stable emission frequency,
the distance from the using effect. Can be used in various fields, to bring you a safe, convenient, rich and colorful daily life
Product features:
1 using the wireless transmitting and receiving technology, without any charges, the battery can be used directly.
2 the use of external environmental protection type lithium battery and 9V battery. After use can be removed at any time so as to avoid unnecessary waste battery.
3 the sound clear, ultra high sensitive clear pickup, at a distance of several meters away from the transmitter quartz clock "tick" sound can be heard clearly.
4 emitted from the emitter to achieve the best results. Open to straight-line distance of up to 500 meters or more, the situation is different neighborhoods as the
building up to a distance of about 50-300 meters.
5 dedicated highly sensitive receiver frequency is not within the scope of the public, the other device can not receive a strong confidentiality.
Instructions:
First, the emitter connected to a 9V battery, and then straighten the transmitter antenna (ie black cord) the place where you need to listen,
open the rear cover on the receiver 3.7v lithium battery, put on headphones to turn on the power switch,
adjust the channel on the receiver adjustment button until the received signal sounds best so far.
Tone can be adjusted according to the size of normal use. (Button is shown)
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