$174.00
Advantages of cell phone jammer with battery and built-in antenna SHN514:
1. Built-in antenna design
2. Good cooling system with fans design and efficient operation
3. Light in heavy with a plastic case .Easy to install
4. Also with battery or car adaptor optional
5. Top Hidden. Not like a jammer.
6. Car adaptor available
RF Frequency: 850-894Mhz,925-960Mhz,1805-1990Mhz,2110-2170Mhz
Total Output power:12W Power supply: AC adapter (AC220V-DC12V available)
Shielding Radius: Up to 30meters (by your background signal strength)
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