Low Cost
   
Operates on very low power, low radiation harmless to human health
   
Prevents from any interference or disturbance of cellular phone calls
   
Battery back-up during power failures
   
Covers an area of 40 to 50 meters radius
   
Deactivates all cellular phone signals of GSM 820-970, 1800 & CDMA 800 Band
   
No damage to Cell phones or other electronic devices.
   
It provides you a quiet and free environment

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