Portable Signal Jammer with 8 Omni Antennas 4W Output Power and 20m Jamming Range for Mobile Phone Blocking

This advanced 8-antenna portable WiFi jammer effectively blocks all mobile phone 2G, 3G, 4G signals along with WiFi 2.4G and GPS L1 bands. With a total output power of 4W, this handheld signal jammer provides reliable jamming coverage up to 20 meters.

• External omni-directional antennas covering TX frequency downlink only
• Advanced cooling system with integrated cooling fan
• Compatible with car charging via DC12V input
• Individual band control - turn on/off any single band without affecting others
• Built-in 4600mAh battery: 4-hour charge time, 90-minute working time
• ODM and OEM orders available with customizable band selection

• Main unit * 1pc
• Power adapter * 1pc
• Car charger * 1pc
• Omni antenna * 8pcs

• Meeting rooms, conference rooms, museums, galleries
• Theatres, concert halls, churches, temples
• Restaurants, classrooms, training centers
• Factories, banks, trains, buses
• Special purpose locations: hospitals, gas stations, military and police authorities

• Do not power on if antennas are not connected
• Ensure antennas are properly installed for optimal coverage
• Keep away from computers, laptops, televisions, and audio equipment during operation
• Normal operational temperature: 65°C - turn off immediately if exceeded
• Coverage depends on location and ambient mobile phone base station strength
• Place device at 2 meters height for better coverage
• Ni-MH battery provides approximately 500 recharge cycles

• Charge battery for at least 5 hours before first use
• Turn off power switch before charging - RED indicator during charging, GREEN when complete
• Install antennas and tighten according to number indicators
• Turn on power switch - Power LED and band LEDs will illuminate
• Avoid using while charging (operational temperature may reach 75°C)

Each frequency band can be individually controlled:

• Locate the dip switch on the side of the device
• Number indicators correspond to antenna positions
• Switch from ON to OFF position to disable specific bands
• Corresponding LED indicator will turn off when band is disabled