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                   Detailed Product Description 
                   Features:
- Jammer Main function: Shielding cell phone signal within security radius 
 - Jammer Isolating Signal Bandwidth: GSM900: 925-960MHz - GSM 
 - 1800: 1805-1880MHz - GPS: 1500-1600MHz-3G: 2110-2170MHz 
 - Jammer Coverage Area: Up to 20 meters 
 - Power Source: Wall plug, car adapter, or built-in battery 
 - Internal Battery: 1600mAh rechargeable Li-ion 
 - Typical Battery Life: 120 minutes 
 - Dimensions: - Antennas off = 112mm x 62mm x 30mm (L x W x D) 
 
 
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