Powerful 700MHz GB21 3G/4G GSM Mobile Signal Booster
Dual-band amplification for enhanced 3G/4G LTE Band 20 coverage, ideal for weak signal areas. High-gain antennas ensure stable connectivity in cars, rural zones, or remote worksites.
Precision-Engineered for Maximum Performance
Industrial-grade aluminum housing with heat-resistant coating, compact and durable for vehicle mounting. Advanced noise filtration eliminates interference for crystal-clear calls.
Quick Plug-and-Play Installation
Low-voltage car adapter with universal OBD-II compatibility, no technical expertise required. Includes magnetic roof antenna for optimal signal capture.
Legal & Safe for Global Use
CE/FCC-certified with auto-gain control to prevent network overload. Supports all major carriers without carrier locking.
Bulk Order Advantage
Direct factory pricing for wholesalers, compatible with 12V/24V systems. Ships globally with bulk discounts on 50+ units.