Introducing the most sophisticated digital cell phone jammer of its class; a high-power cell phone jammer with remote control. This is a fixed unit, encased in tough aluminium, ideal for medium to large rooms. Compatible with 2G / GSM / CDMA / DCS / PCS / PHS / 3G (UMTS) / 4G LTE 1800 (Band 3) networks.
850 ~ 2200 MHz
(The jammer block the cell phone downlink frequencies!)