20W Prison Jammer System for all 3G/4G cellphones with inside high-speed cooling fan. Omini-directional and directional antenna is optional.The prison jammer can be application for Government Building, Prison, and Facilities. Each band can adjust RF output power or turn off without influencing the other bands operation, it's user-friendly. We can charger at home by DC adapter, by car charger.
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My phone:+86-13580038745Specifications: Item#:CPJ4015 High Power cellphone signal jammersFrequency:CDMA 800MHz: 850 to 894MHz;GSM 900MHz: 925 to 960MHz; GSM 1800MHz: 1805 to 1880MHz (DCS);GSM 1900MHz: 1920 to 1990MHz (PCS);3G
: 2110MHz to 2170MHz;Total output power: 20W; Jamming range: up to 60 m, the jamming radius still depends on the strength signal in given area; Antenna: External directional Panel antennas all the TX frequency covered down link only; Power supply: 50 to 60Hz, 100 to 240V AC With AC adapter (AC100-240V-DC5V20A);Dimension: 285 x 255 x 140mm;Weight: 10.0kg;You can select four of above frequency bands you need in a jammer; ODM and OEM orders are welcome;