Portable Cell Phone Jammer / Blocker (2G/CDMA850/GSM900/DCS1800/PCS1900, PHS, 3G/UMTS/WCDMA 850/900/1700/1800/1900/2100, 4G/LTE 800/1700/1800/1900/2100/2600 Band 1/2/3/4/7/20) Portable Cell Phone Jammer / Blocker (2G/CDMA850/GSM900/DCS1800/PCS1900, PHS, 3G/UMTS/WCDMA 850/900/1700/1800/1900/2100, 4G/LTE 800/1700/1800/1900/2100/2600 Band 1/2/3/4/7/20) Portable Cell Phone Jammer / Blocker (2G/CDMA850/GSM900/DCS1800/PCS1900, PHS, 3G/UMTS/WCDMA 850/900/1700/1800/1900/2100, 4G/LTE 800/1700/1800/1900/2100/2600 Band 1/2/3/4/7/20)

Powerful and effective, this portable signal jammer effectively disables any current mobile phone signals on the 2G (CDMA 850, GSM 900, DCS 1800 and PCS 1900), PHS, 3G (WCDMA 900/2100) and 4G LTE (800/1800/2600 aka 3/7/20) bands without interrupting any other electronic devices. The highly portable size and one-touch power button allows users to quickly turn the device on or off for instant jamming and un-jamming. Incredibly easy to operate and carry around, this portable signal jammer is both the ideal security and anti-security device and quite simply one of the best we have ever tested.

This is a powerful palm-sized cell phone signal shield blocker that disables nearly all kinds of cell phone signals, including the 2G (CDMA 850, GSM 900, DCS 1800, PCS 1900), PHS, 3G (WCDMA 850/900/1700/1800/1900/2100) and 4G LTE (800/1700/1800/1900/2100/2600 aka 1/2/3/4/7/20) bands. The device produces a 4 W radio shield with an effective range of up to 20 meters.

Ideal for meeting rooms, restaurants, concert halls, offices, schools – any place where cell phone use is inappropriate or prohibited. Keep students from text messaging and using the mobile broadband internet during tests, and keep unwanted phone calls from disrupting religious services. Usable: private offices, army authorities, police / SWAT authorities, bus and vehicles (imagine how you can finally have a good undisturbed nap), VIP and privacy-sensitive scenarios, etc.

Specifications:

• Frequencies blocked (independent of the service providers):
  • 2G/CDMA850 (identical CDMA800): 869 ~ 894 MHz (in America)
  • 2G/GSM900: 925 ~ 960 MHz (in the rest of the world)
  • 2G/DCS1800: 1805 ~ 1880 MHz (in the rest of the world)
  • 2G/PCS1900: 1930 ~ 1990 MHz (in America)
  • PHS (DECT): 1880 ~ 1920 MHz
  • 3G/WCDMA 850: 869 ~ 894 MHz
  • 3G/WCDMA 900: 925 ~ 960 MHz
  • 3G/WCDMA 1700: 2110 ~ 2155 MHz (in America)
  • 3G/WCDMA 1800: 1805 ~ 1880 MHz
  • 3G/WCDMA 1900: 1930 ~ 1990 MHz (in America)
  • 3G/WCDMA 2100: 2110 ~ 2170 MHz
  • 4G/LTE 700 (Band 12/13/14/17): 725 ~ 770 MHz (optional)
  • 4G/LTE 800 (Band 20): 791 ~ 821 MHz
  • 4G/LTE 1700 (Band 4): 2110 ~ 2155 MHz (in America)
  • 4G/LTE 1800 (Band 3): 1805 ~ 1880 MHz
  • 4G/LTE 1900 (Band 2): 1930 ~ 1990 MHz (in America)
  • 4G/LTE 2100 (Band 1): 2110 ~ 2170 MHz
  • 4G/LTE 2300 (Band 40): 2345 ~ 2400 MHz (optional)
  • 4G/LTE 2600 (Band 7): 2620 ~ 2690 MHz
  (The jammer block the cell phone downlink frequencies!)
• Blocked frequencies by antennas:
  
  • 791 ~ 821 MHz
    • 4G/LTE 800 (Band 20)
  • 850 ~ 960 MHz
    • 2G/CDMA850
    • 2G/GSM900
    • 3G/WCDMA 850
    • 3G/WCDMA 900
  • 1805 ~ 1990 MHz
    • 2G/DCS1800
    • 2G/PCS1900
    • PHS (DECT)
    • 3G/WCDMA 1800
    • 3G/WCDMA 1900
    • 4G/LTE 1800 (Band 3)
    • 4G/LTE 1900 (Band 2)
  • 2110 ~ 2170 MHz
    • 3G/WCDMA 1700
    • 3G/WCDMA 2100
    • 4G/LTE 1700 (Band 4)
    • 4G/LTE 2100 (Band 1)
  • 2620 ~ 2690 MHz
    • 4G/LTE 2600 (Band 7)
• Battery: Built in Rechargeable Li-Ion (7.4 V / 3000 mAh)
• Typical Battery Life: ~ 2 - 3 hours
• Total output power: 2.5 W
• Typical Coverage: ~ 15 - 20 meters (depends on the weather and the mobile network signal strength)
• Inside colling fans, can work 24 hours/7 days continuously
• Switchable frequencies
• Antennas: External omnidirectional
• Dimension:
  • Antenna off: 130 mm × 76 mm × 35 mm (L × W × D)
  • Antenna on: 2xx mm × 76 mm × 35 mm (L × W × D)
• Weight: xxx g

Package including:

• 1 × Portable Mobile/Cell Phone Signal Shield Blocker Jammer
• 5 × Detachable omnidirectional antennas
• 1 × AC Wall Charger
• 1 × Car Charger