28 Channels 28W Portable Signal Jammer with 27 Antennas for Full Bands Wireless Signal Blocking

28 bands 28W handheld signal jammer with comprehensive frequency coverage including 5G/4G/3G/2G mobile networks, WiFi 2.4G/5G/6E, GPS L1-L5, UHF/VHF/LOJACK, RC 433/315/868, LORA, and FM Radio.

Features a new larger radiator with 4 cooling fans and 27 all-in-one antennas. Effectively jams all types of Android phones, tablets, smartphones, iPhones, Windows phones, and other devices. Includes battery capacity LCD display showing percentage, working voltage, and current.

• AC Power Supply: Universal voltage support (110-240V AC, 50-60Hz) with dedicated AC charger, converting to 12V DC
• Car Power Supply: Equipped with 12V DC car charger for use in vehicles (trains, buses) for on-the-go security
• Built-in Battery: 7.4V/12000mAh high-capacity rechargeable battery, supporting approximately 80 minutes of continuous operation

Note: The jammer supports simultaneous charging and use, but frequent long-term use (over 3 hours) in this mode is not recommended to extend battery life.

• Antennas: 27 high-gain omni antennas (192mm length, 1-3dBi gain) for strong signal reception and jamming coverage
• Cooling System: High-efficiency aluminum alloy radiator + 4 built-in cooling fans for rapid heat dissipation during prolonged use
• Dimensions:
  • Jammer host (without antennas): 210×133×85mm
  • Neutral packing size: 295×260×125mm (gross weight: 4.0kg)
  • Safe carry case size: 345×335×145mm (gross weight: 6.0kg)

• 1× SA-PJ28-plus Jammer Host
• 27× Omni Antennas
• 1× AC Charger (110-240V AC to 12V DC)
• 1× 12V DC Car Charger
• 1× Safe Carry Case (345×335×145mm)