F999B high sensitive thru wall spy ear voice monitor

F999B high sensitive thru wall spy ear voice monitor Model No.: WO-EAR02
$150.00

Availability: In stock

F999B high sensitive thru wall spy ear voice monitor
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specifications of F999B high sensitive thru wall spy ear voice monitor:
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
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