This portable cell phone jammer is with complete spectrum interference and wide range of up to 10m distance. It comes with a built-in rechargable Li-battery for 2-3 hours signal jammering. This jammer device can block all GSM, CDMA, DCS, PHS & 3G signal systems. With this jammer you will be sure to easily keep your meeting rooms and immediate surroundings annoyance free!

Specification:
Isolation signal frequency:
CDMA:870-880MHZ
GSM:925-960MHZ
DCS:1805-1850MHZ
PHS:1900-1920MHZ
3G:2110-2170MHZ
Typical coverage: 10m
Typical battery: Rechargable Li-battery for 2-3 hours
Dimension:100*42*18mm

Accessories：
charger, car power adapter, user manual