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China electech


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Silencer - Full Spectrum Cellphone signal jammer (CDMA + GSM + 3G)



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1 Piece

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Product Specification

Brand Name : -

Product Description

Silencer - Full Spectrum Cellphone signal Jammer (CDMA + GSM + 3G)

Manufacturer Specifications

* Primary Function: Cellphone network coverage disrupter within a defined security radius
* Affected Frequency Ranges:
850 - 960MHZ
1805 - 1990MHZ
2110 - 2170MHZ
* Affected Cellphone Standards: CDMA, GSM (quadband), 3G
* Affected Radius: up to 30 meters
* Power Source : Wall plug, Car adapter, or Built-in rechargeable Lithium-Ion (LI-ION) battery
* Internal Battery: 2000mAh rechargeable Lithium-Ion (LI-ION)
* Typical Battery Life: 2-3 hours
* Dimensions:
Antennas OFF (mm) = 112 x 60 x 30 (L x W x D)
Antennas Attached (mm) = 195 x 60 x 30 (L x W x D)
* Catalog Ref: Cellphone block, Mobile phone blocker device

Product Notes

*Compact - without its antennas attached, The Silencer is iPod-sized
*Can be run on AC power or internal battery power
*Electrical power and recharging from AC charger (110/220V)
*Certified by the Security Ministry of China, so you know it works well!

Package Contents for Model BD-SEJ14

*User manual - English
*AC power charger
*Car power charger
*Case with carrying strap

FAQ - Frequently Asked Questions

*How could this blocker possibly disrupt 3G cell phone signals when the 3G frequency of 2100 MHz falls 
outside of The Silencer's affected frequency range of 2110-2170MHz range?

Though 3G cellphones reportedly operate at 2100 MHz, the number has actually been rounded down for 
the sake of convenience in the same way PI does not equal exactly 3.14. In reality, 3G cellphones operate
 within the 2100-2170MHz range and as a result The Silencer definitely disrupts 3G mobile phone signals.

*I know that most blocker can blocker 2G signals, so this cellphone blocker can blocker 3G signals as well?
Definitely. As long the cellphone user is using a 3G cellphone operating in the frequencies between 2110-2170MHz he won't get a signal within seconds of you turning on this blocker

*Does this mobile phone blocker poses any health risk issues?
No, this mobile phone blocker is completely safe to use

Contact Us

Contact Person : Fiona

Company:China electech

Address:Shenzhen, Guangdong, China,


Fiona < China electech >
I want to know:

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