MSN:sk_knight01

wwwwirelessphonejammercom

Beijing Signal Knight Technology and Trade Co.Ltd.


Features of SK-4 Cell Phone Jammer


Prevent cheating by using cell phone in the examinations
Keeping you away from the noise or disturbance of unexpected cell phone calls or SMS in the class time or meeting time.
Mini-size medium power cell phone jammer
Low weight and Nice texture and color
To block wireless phone communication links within an effective area.
No transmissions or receptions of wireless phone call in coverage area.
All specified frequency bands will be blocked simultaneously.
For using at meeting rooms, conference rooms, museums, temples, mosques, galleries, theatres, concert halls, churches, restaurants, classrooms, training centers, factories, banks, trains, buses etc.

Specification:

We offer different bandwidths cell phone jammer relay on different

countries' standards

Output
Frequency

CDMA
870-880 MHZ

GSM
930-960MHZ

DCS
1805-1850MHZ

PHS
1900-1925MHZ

3G
2110-2170MHZ

Range: Approx. 0.5-20 meters
Weight: 0.8kg
Dimension: Product: 20*14*5cm, Package: 30*16*6cm
External Power
RF Power: 200mA
Output Power: 300mW
Power Adapter: Input AC160V-240V
Power Source: DC 5V
Relative Humidity: 20%--95%
Working Temperature: -40~ +55 deg C