High Power 12CH Cell Phone Signal Jammer
Professional GPS and WiFi signal blocker with 1 to 20 meters radius coverage for secure environments.
Product Overview
This 12-channel handheld mobile phone signal shielding device is engineered with advanced technology to provide reliable communication blocking in sensitive areas. Designed for security and confidentiality requirements, it effectively blocks GSM, CDMA, DCS, PHS, 3G, 4G, 5G, GPS, WiFi, Lojack, and remote control signals within a 5-80 square meter range without interfering with other electronic devices.
Key Features
- Compact portable design for easy transport in bags or purses
- Built-in rechargeable lithium battery with 2-3 hours operation time
- Dual charging capability via AC adapter or car charger
- 12-channel frequency coverage for comprehensive signal blocking
- Safe operation with no harm to human body or electronic devices
- Total RF output power: 12W for effective performance
- Stable continuous operation with long service life
- 12 external antennas for optimal signal coverage
Technical Specifications
| Frequency Coverage |
GSM, CDMA, DCS, PHS, 3G, 4G, 5G, GPS, WiFi, Lojack, Remote Control |
| Effective Range |
1 to 20 meters radius (approximately 5-80 square meters) |
| RF Output Power |
12W total |
| Battery Life |
2-3 hours continuous operation |
| Dimensions |
160×105×50mm (without antennas) |
| Weight |
1.5kg net weight |
| Color Options |
Black or Silver |
| Antennas |
12 pieces included |
Applications
- Security-sensitive small spaces requiring confidentiality
- Private executive offices and confidential meeting rooms
- Mobile vehicle protection for political and business figures
- Government agencies and corporate conference rooms
- Personal and business scenarios with special security needs
Product Images
Packaging
Frequently Asked Questions
Why does the phone's signal indicator still show signal when the jammer is working?
This is a visual illusion. The phone cannot actually communicate. When you attempt to make a call, you'll notice no signal on the indicator. The jammer doesn't interfere with other electronic devices when antennas are properly installed.
Does the shield create coverage dead spots?
The electromagnetic signals operate within mobile communication bands and only block mobile communications. The signals remain relatively static and don't affect other electronic equipment.
Is the signal jammer harmful to humans or mobile phones?
The emitted electromagnetic signal strength is very weak and far below levels harmful to humans. The jammer only blocks the phone's forward signal to prevent connection with base stations, causing no damage to phones.
Is there a difference between indoor and outdoor shielding distance?
Yes. The 30-40 meter effective distance typically refers to indoor use. In open areas, shielding can extend several hundred meters. Effectiveness depends on environmental factors like proximity to base stations.
Does the jammer work equally on GSM and CDMA phones?
CDMA phones have superior anti-interference performance, so effective distance is slightly smaller (2-4 meters less) than for GSM phones. Important sites may require additional jammers for complete CDMA coverage.
Is it normal for the device to become warm during operation?
Yes, this is normal. The aluminum alloy construction provides effective heat dissipation, allowing for stable long-term operation without damaging the unit.
Your message must be between 20-3,000 characters!
english
français
Deutsch
Italiano
Русский
Español
português
Nederlandse
ελληνικά
日本語
한국
العربية
हिन्दी
Türkçe
indonesia
tiếng Việt
ไทย
বাংলা
فارسی
polski
