Gsm listening devices With Voice Trigger From GSM listening device supplier Northvision
CX600R (Sound activated trigger, auto call back function)
This gsm bugs gsm listening devices allow you to spy anyone in any place. You only need to buy a new SIM card, place it in this device. Once you call this number, this device will auto answer, and it is working like a phone with auto answer without speaker.
So you can actually hear anyone's talking about you or whatever when you call in that sim card's phone #. But no one will notice, because this device look like a USB hub or small USB device. But actually it is a spy tool.
If you store this beside a computer and put in to a usb it will keeps charging..
And you can call in anytime anywhere..or you can put in the car or other place and it will work 1 to 2 days it will need to charge again.
Frequency: 900, 1800, 1900
Embed four condense microphone
24 hour non-stop power supply
All GSM SIM card compatible
Microphone range(Meter): 5~7(Radius), 4 levels
Receive sensitivity: -\+10K
Working temp: -40~50'C
Responding frequency: 1.2K~800Khz
Stand-by time: 7 days
Working time: 4 hours
Size: 2.8 x 1.6 x 0.8 cm
Police can use it for law enforcement
Lawyers can use it to collect evidence
Reporter can use it to interview in special occasion
For stealth surveillance
Contact Name: Eric Zhou
Company Name: Northvision Technologies Co., Ltd
Street Address: B12B, Duhui 100 Building B,
Huaqiangbei, Futian District, Shenzhen,
Member name: NorthvisionTechnologies
Member Since: 13 May 2010
Total Leads: 45 NorthvisionTechnologies Import Export Business Leads
Business focus: Spy Cameras, Sports Cameras, Home Intellicorder Video Door Cameras, Bird Hunting Mp3, Gsm Mms Cameras, Gsm Bugs
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