It can be applied at prison, oil field, museum, gas station, military base, security protection etc. please do field test first to make sure no interference happened to the normal operation of their equipment and instrument. It's easy to install and operate the device

Blocker all: GSM, cCDMA, PHS, PCS, DCS, 3G
Isolating signal frequency:

CDMA: 850-894MHz
GSM: 925-960MHz
DCS: 1805-1,880MHz
PHS: 1,900-1,930MHz
CDMA1900: 1,930-1,980MHz
3G: 2,110-2,170MHz

Power supply: 110-220V AC/50Hz
Shielding radius: 20 - 50m
Out power: 12W
Rules of installation: UL (E190582) CSA (LR 112971 level 3)
Remote control: can up and down the power, can open and close the jammer
Working time: without the time limit, may continue to work

Phone jammer
AC adapter
User's manual
Remote control
5 pieces antenna