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GPS Jammer (TW-GJ3000) GPS Jammer (TW-GJ3000) GPS Jammer (TW-GJ3000) Product Description » GPS jammers can prevent car, rented-car, human, government, intelligence ageney and so on from being tracked, but these devices does not intercept mobile phone and other wiring (electronic device). Specifications (A)TX Frequency: 870~96 0 MHz (B)TX frequency: 1575MHz (C)TX frequency: 1805~ 1850 MHz (A) output power: 100 ~150 mW (B) output power: 100 ~150 mW (C)Output Power: 100 ~150 mW Total Output Power: Max 450mW Battery: LI battery DC 5V / 1500mA / H Antennas: External Omnidirectional Continue using time: 2 ~3 hours Jamming Range: Radius 5 ~ 12 M The jamming radius still depends on the strength signal in given area Dimension: 95x45x18 mm Weight: 150 g Model: TW-GJ3000