Specifications:
Mobile Phone Signal Jammed: CDMA, GSM, DCS, PHS
Isolating Signal Bandwidth
CDMA: 850-894Mhz
GSM: 935~960Mhz
DCS: 1805~1880Mhz
3G: 2100~2170Mhz
Typical Jamming Radius - 40 meters
Max Output Power: 10 W (High Setting) 7 W (Low Low Setting)
Antenna Gain: 3 dBi
Working Temperature: -10~ +40 deg C
Power Source: DC 5V
Dimension: 143x252x51mm (LxWxD)

other features:
Passive Cooling (Completely Silent)
High/ Low jamming range adjustment
Table top or Ceiling mount design

Accessories:
Manual
4x Antenna
Power Adapter