. Adjustable Frequency Cell Phone Signal Jammer with Knob Control for Multi-Band Signal Blocking

Adjustable frequency cell phone signal jammer

The adjustable frequency cell phone jammer is designed to block selected mobile network bands by allowing manual control over operating frequencies ( Knob or dip). Users can switch or fine-tune frequency ranges depending on different signal environments such as GSM, 3G, 4G, or 5G bands. The device uses multi-band interference technology to reduce unwanted wireless communication within a defined area. With a stable output system and cooling structure, it maintains continuous operation under load.

10 Bands portable 5G jammer 10W
Save up to $424.16
P-N10 - 10 Bands portable 5G signal Jammer
The P-N10 is a powerful multi-channel jammer that blocks GSM, 3G, 4G, 5G, WiFi, GPS, and remote signals within a 5-20m range. It features high-gain antennas, DIP switch control, a durable aluminum body, dual power options, and an advanced cooling system for reliable, portable operation.
Portable powerful Cell Phone GPS Lojack Jammer
Save up to $273.15
8W Enhanced 8-band Cell Phone GPS Lojack Tracking Jammer
The P-N8P 8-antenna most powerful portable jammer offers high-power signal disruption, blocking 2G to 4G LTE, GPS, and WiFi signals. Its modular design, with customizable frequency control, ensures precise, adaptable usage for both covert and stationary applications.
16 antenna 18 bands Portable Cellular signal jammer
Save up to $570.34
N-X16P - Bestseller 16 antenna 18 bands handheld cellular Jammer device
The bestseller N-X16P Portable 5G Jammer features an LCD display, dual-band design, and 18 jamming channels, ensuring effective signal blocking, broad coverage, and enhanced portability.
-52% Global Full Spectrum Jammer for 5G Sub-6, Wi-Fi 6E/7E, GPS L1-L5
Save up to $1132.40
Global Portable 31-Band Full Spectrum Jammer for 5G Sub-6, Wi-Fi 6E/7E, GPS L1-L5
Designed for modern wireless environments, Full Spectrum Jammer P-N31 delivers reliable suppression across 5G Sub-6 GHz networks, Wi-Fi 6E/7E, satellite positioning bands, LoRa, FM broadcast, and legacy cellular standards — making it one of the most comprehensive portable solutions available as of 2026.
Powerful 8 bands desktop 5G phone and WiFi Jammer Blocker
Save up to $445.48
T-N8P - Powerful desktop Multi-Frequency phone Jamming device (42W)
The T-N8P 8-band Jammer blocks data transmission up to 100m, prevents leaks via mobile networks and WiFi, features adjustable power control, and has three cooling fans.
Portable anti GSM jamming device with Protective Sleeve
Save up to $198.63
P-N8V Portable Mobile Cell Jammer | 8-Antenna (Includes 5G) | 30m
Portable Cell Signal Jammers with eight antennas and independent frequency switches. Features protective sleeve, power indicator LED, and efficient heat dissipation. Compact, lightweight, and rechargeable, it blocks 2G–5G, GPS, and WiFi signals up to 30 meters safely and reliably.
Handheld portable jamming device blocking WiFi, GPS, Lojack, and cell phone signals
Save up to $316.34
J10P 10W Portable Signal Jammer – Silver | Cell Phone, GPS & WiFi Blocker
The J10P 10W portable signal jammer blocks 5G, 4G, 3G, GPS, Lojack, WiFi, and cell phone signals. Compact and handheld, with a 12,000 mAh battery and multi-band control, it delivers stable 10W output and effective coverage up to 25 meters, ensuring comprehensive interference for mobile communications and location signals.
portable bestseller 4G phone jammer
Save up to $180.1
Bestseller portable 4G Cell phone Jammer, WiFi GPS LOJACK signal Blocker
The P-8XL is a compact, high-performance mobile jammer blocking 2G, 3G, 4G, GPS, and Wi-Fi signals within a 15m radius. It features 8 adjustable antennas, a 2-hour battery, and supports charging via 220V or car power, ensuring flexible and portable signal suppression.
6 bands 4G cell and wifi/bluetooth jammer
Save up to $144
P-6L - 6 bands Portable Jammer for GSM, 3G, 4G and WiFi Signal
The P-6L portable signal Blocker blocks GSM, CDMA, 3G, 4G, WiFi signal within a 10-meter range. It features 6 adjustable antennas, an air cooling system, a 4000mAh battery for 2 hours of use, and supports simultaneous charging and operation. Chargers for home and car are included.
8 bands portable mobile cell jammer
Save up to $195.84
P-T8 - 8 Bands Super powerful mobile cell Jammer
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.
12 Bands portable multi-frequency signal Jammer
Save up to $238.06
P12-S - 12 Bands mobile wireless signal Blocker
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.
12 bands portable cell blocker
Save up to $341.04
P-12Pro - 12 bands portable 5G cellphone Jammer (12W)
The P-12Pro jammer offers wide frequency coverage, blocking smartphones, trackers, drones, and more across 2G-5G, WiFi, Bluetooth, and GPS frequencies. With 12W output, customizable channels, a 12,000mAh battery, and advanced cooling, it ensures reliable, portable, and efficient performance for diverse uses.
16 bands portable mobile radio communications jammer
Save up to $513
P-16N - 16 bands mobile satellite and radio communications signal Jammer
The P-16N jammer blocks signals across 16 frequency channels (300 MHz to 6000 MHz), offering customizable interference for mobile, satellite, and radio communications in various scenarios.
low-noise cooling system T-N8V desktop cell signal jammers
Save up to $187.23
Best Selling Classic Silve Multi-Band Desktop Cell Signal Jammer with 8 Antennas
The T-N8V stationary cellphone jamming device provides stable multi-band blocking for 2G, 3G, 4G, WiFi, and GPS. Features 8 omnidirectional antennas, low-noise cooling, and a sleek silver design, ensuring continuous, quiet operation in offices, classrooms, and sensitive indoor environments.
5-antennas GSM jammer supporting GPS or WiFi options
Save up to $131.66
P-5L Portable Bright Gold Anti-GSM Signal Jammer | Optional Accessories | 5 Antennas | 20m
The P-5L is a portable 5-antenna GSM signal jammer featuring selectable frequency configurations for GSM, 3G, 4G LTE, GPS, and WiFi blocking. Equipped with independent channel control, efficient aluminum cooling, and a blocking range of up to 20 meters.
Cell phone jammers with LCD display, jamming range up to 40m
Save up to $233.83
P-12PM 37W Portable 5G Cell Jammer with 12 Antennas, WiFi & GPS Blocking
Discover the P-12PM portable 12 band 5G signal jammer with 37W output power, LCD display, selective band control, and up to 40M coverage. Supports blocking 5G, 4G LTE, WiFi 2.4G/5G, and GPS L1 signals with built-in cooling fans and rechargeable battery.
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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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