Northvision Technologies Inc (www.northvision.com.cn)

GSM Listening Device

	GSM Listenning Device

Click to enlarge image

Origin	China
Model Number	HGL-B001
Brand Name	northvision

GSM Listenning Device, compatible with 900MHz, 1800MHz, 1900MHz, long standby time. It can be used by Law Enforcement Agencies to detective.(posted by northvision technologies)

Products descriptions:

This GSM Listenning Device 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.

GSM Listenning Device Specifications:

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.

Parameters:

Weight: 0.18kg
Size: 2.8 x 1.6 x 0.8 cm

Products applications:

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.

(Posted by www.northvision.com.cn)