Tri-Band 900/1800/2100MHz Mobile Signal Booster - B1/B3/B8/B20 4G LTE Amplifier(Black)

1. Tri-Band Signal Booster with Multi-Network Compatibility: This mobile signal amplifier enhances 3G/4G coverage across 900/1800/2100MHz frequencies, supporting bands B1, B3, B8, and B20. Compatible with major network providers, it ensures seamless connectivity in weak-signal areas like rural regions, basements, dormitories, and urban villages.
2. Smart Life App Control & AGC/ALC Technology: Remotely monitor and adjust the amplifier via the Smart Life app from any location. Features Automatic Gain Control (AGC) and Automatic Level Control (ALC) to dynamically optimize signal output, extend device lifespan, and reduce power consumption.
3. Enhanced Stability for Demanding Environments: The AGC system ensures stable signal amplification even in fluctuating conditions, minimizing dropped calls and slow data speeds in challenging locations like thick-walled buildings or underground spaces.
4. Multi-Scenario Coverage & Wide Compatibility: Designed for rural homes, underground parking, student dormitories, and urban apartments. Compatible with 3G (B1/B8) and 4G LTE (B1/B3/B20) networks, catering to diverse user needs.
5. 5. Dimensions: 20.5 x 13.5 x 3.7cm
6. Weight: 958g