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 Keeps you away from noise or disturbance of unexpected cellular phone calls. This JAMMER will paralyse cellular phone signals within a twenty meter radius. All the specified frequency bands will be blocked simultaneously. It can be used in a meeting room conference room church temple restaurant classroom training center bank train bus hospital gasstation coffeeshop etc etc.
    A Cell Phone Jammer is an instrument to prevent cellular phones from receiving and tranitting mobile signals. Unfortunately they are needed in all kinds of places because not all cell-phone users know when to stop talking.
    It’s great to be able to call anyone at anytime. Who hasn’t seethed through one side of a conversation about an incredibly personal situation as the talker shares intimate details with his friend as well as everyone else in the area? While most of us just grumble and move on some people are actually going to extremes to retaliate. Cell phones are basically handheld two-way radios. And like any radio the signal can be disrupted or jammed using a cell phone jammer.
    Cell phone jamming devices were originally developed for law enforcement and the military to interrupt communications by criminals and terrorists. The Cell Phone Jammers are now a necessity for accomplishing a more cultured society because there is a growing demand for silence at certain places.
    This JAMMER will only jam mobile phone signals and does not affect the normal operation of other electronic devices!
    Frequencies: 800 ~ 900MHz 1800~1900 MHZ 2.1~2.2GHZ
    Input power: AC/DC available 12V DC 1.6A switching power adapter
    Output power 1 Watt
    Available system: Including analog (AMPS TACS NMT) and digital (GPRS G DCS CDMA PDC TDMA PHS PCS iDEN W-CDMA UMTS)
    Effective range: 15 meters radius up to 20 meters
    Battery: 12V Li-ion battery
    Dimension: 110*62*30mm not including the antenna
    Net Weight: 300g —(ID-295981491956291)