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Product Descriptions of F999B High Sensitive Thru-wall Spy Ear - Voice Monitor - Listening Through Walls:
A high sensitive partition monitor, which is perfectly constituted by metal receiver, metal handset with
superior detecting ability and high-quality headphones, making it more sensitive and sound-qualified. It
owns built-in Lithium battery and unique FM transmitter function, easy to be manipulated and carried
Put the earplug into headphone hole, the sonde into the MIC hole, and clockwise rotate the "switch on/off"
button of the volume. When the indicator light of the power works, booth the machine and adjust the volume,
smoothly stick the sonde to wall the need to be monitored, adjust the gear-choice buttons A B C until you
can clearly hear the sound from the room.
If you need to do the sound recording, you can use recording equipments to go through the mouth of the
recoding to connect the audio cable for recording. Also, It's has another special FM wireless emission
function, with specialized FM receiver which can receive the information afar and monitor that.
The indicator light works when it is charging please shutdown in case of damaging the machine. It needs to
charge for about five hours. The sonde must smoothly stick to the wall's surface; Never move the sonde when
you are sticking it to the wall in case of damaging the sonde. The effect of the monitoring depends on the
thickness, materials and other features of the wall. Appropriately adjust the gear-choice button until you
can get the best effect of monitoring. D is the partition monitoring bougie of the sonde is the refined
part which should not be dismantled or touched discretionarily.
Electric Current Exhaust: 10mA
Battery type: 3.7V lithium-battery
Continuous monitoring for 100hours
Four Audio Choices: A (200MHz) B (800MHz) C (1200MHz) D (partition bougie monitoring)
Sonde's sensitivity: -70db, the maximum times of amplifying
The audio: 2000 times
Penetrability: Cement wall, Steel wall, wooden wall, iron wall, glass and air brick
Answering patterns: Headphones, recoding, wireless FM emission
Specifications of F999B High Sensitive Thru-wall Spy Ear - Voice Monitor - Listening Through Walls:
Electric current exhaust: 10mA
Battery type: 3.7v lithium battery
Working time: continue monitoring up to 100 hours
Four audio channel: 1200Hz, 800Hz, 200Hz and Partition bougie monitoring
Sonde sensitive: -70db
Maxmum audio amplify times: 20000 times
Penetrability: cement wall, steel wall, wooden wall, iron wall, glass and air brick
Receiver method: earpieces listening, recording by other audio device and FM transmit to other device.