Rectangular Cell Phone Jammers with Built-in Antennas

These mobile phone signal blockers are characterized by their rectangular, block-like design. This "brick" form factor provides a robust physical structure and a balanced internal layout—often featuring integrated internal antennas—resulting in a streamlined appearance that efficiently accommodates electronic components while maintaining a minimalist, practical design.

The brick-style design allows for convenient portability, placement, and operation across various environments, making it instantly recognizable among portable jammers talking in mobile.

Box-type Portable GSM GPS jammer for Car
Save up to $115
CM4 Brick-type Portable Anti Tracking GSM GPS Jammer for Car
CM4 is a compact Box-type portable Car GPS L1 L2 jammer for anti tracking. Blocks GSM, GPS L1/L2 signals with 10–15m coverage. Built-in battery, easy to use. It's practical for everyday vehicle privacy without drawing attention.
Wood Grain speaker-like portable signal jammer
Save up to $298.15
CM10 - Wood Grain 5G Cell Phone handheld Signal Jammer
The CM10 is a rectangular stylish Wood Grain portable jammer that blocks 5G, 4G, 3G, GSM, WiFi, and GPS signals—ideal for privacy, security, and anti-tracking in sensitive settings.
Portable Multi-Frequency Compact Jammer With remote control
Save up to $273.1
30M RF remote control Portable Multi-Frequency Mobile Network Jammer
The 10XL is a portable signal jammer blocking 31 signal types, including U.S. cell, GPS, and WiFi, with remote activation and built-in battery power.
Pocket size internal antenna GSM Jammer
Save up to $132
SPY-8 - Rectangular 8 bands internal antenna GSM Jammer
The SPY-8 internal antenna eight-frequency Mini jammer blocks GSM, WiFi, GPS, and more within a 5m range but suffers from poor heat dissipation due to its outdated design, limiting effectiveness. It runs for 90 minutes and supports car and AC charging.
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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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