Cellular Phone Jammer Block Cell Phone Signal

A cell phone relies on radio signals to stay connected to nearby cell towers, so what happens when that connection is disrupted? A device that blocks cell phone signal transmits radio-frequency interference on the cellular bands it targets, making it harder for a phone to maintain its network connection.

Calls, text messages and mobile data may become unavailable within the affected area. The actual effect depends on the signal conditions and the mobile network jammer itself.

In addition, please take note of the cellular frequency bands supported by a cell phone blocker, its antenna configuration, rated power, and power supply method; furthermore, portable and desktop units differ in terms of their physical form and structure.

8 bands portable mobile network jammer

P-T8 - 8 Bands Super powerful mobile cell Jammer

Save $195.84 · 29%

The P-T8 portable Jammer delivers 16 watts to block 8 communication channels within 30 meters. Power is smartly distributed, with higher output (e.g., 3 watts for GSM) for harder-to-suppress frequencies and lower output (e.g., 1 watt for Lojack) for easier ones.

$672.20$476.36
12 Bands portable multi-frequency signal Jammer

P12-S - 12 Bands mobile wireless signal Blocker

Save $238.06 · 31%

The P12-S is a versatile 12-band mobile jammer designed to block Wi-Fi (2.4/5GHz), all cellular and mobile internet signals, and satellite navigation systems like GPS. With selectable jamming frequencies, it adapts to various scenarios, disabling hidden cameras, trackers, and wireless bugs. Its dual-fan active cooling system ensures stable, long-term operation without overheating.

$765.20$527.14
Cell phone jammers with LCD display, jamming range up to 40m

P-12PM 37W Portable 5G Cell Jammer with 12 Antennas, WiFi & GPS Blocking

Save $233.83 · 21%

The P-12PM is a portable 12 band 5G signal jammer featuring 37W output power, 12 external antennas, and up to 40 meters of coverage. Equipped with an LCD screen, independent band control switches, aluminum cooling system, and a 5200mAh rechargeable battery, it supports blocking 5G, 4G LTE, WiFi, and GPS signals for reliable multi-frequency interference performance.

$1089.49$855.66
portable GSM 5G Cellular signal jammer Blocker

P-B12 - 12 Bands Cellular signal Blocker (10W)

Save $230.00 · 31%

The P-B12 portable cell Blocker Jammer with 12 antennas and 10W power, blocks 2G-5G, GPS, N-AMPS, AMPS, and GLONASS signals within 20 meters. It disrupts devices like smartphones, GPS, Wi-Fi, and bugs, runs up to 1 hour on battery, and features a cooling system to prevent overheating.

$751.20$521.20
portable worldwide all in one signal Jammer

28 Bands portable worldwide all in one signal Jammer, WiFi 6E FM Blocker

Save $528.05 · 29%

The P-N28 is a powerful multi-frequency jammer device that blocks mobile networks (GSM, 2G-5G), GPS, Wi-Fi (2.4-5.8 GHz, Wi-Fi 6E), Bluetooth, FM radio, and more. With 28W output, it covers up to 25 meters and runs for 90 minutes on a battery. It includes a cooling system and carrying case.

$1852.30$1324.25
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Important things

1.Please install the antenna before using the signal jammers

2.Most Portable cell phone jammers have dip switches on the side. After turning on the main power switch, activate the dip switch—the red or green light will indicate it's on. Each switch controls a specific signal (Refer to the frequency table on the packaging for details).

3.Avoid using the jammer while charging.

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