- High gain, cell phone signal booster amplifier easy installation, and operation. Please follow the instructions in the picture to check the frequency band of your mobile phone and try to see if it is compatible. Measuring frequency band of mobile phone signal amplifier: Band 1, Choose 2100 Booster; Band 2, Choose 1800 Booster; Band 3, Choose 900 Booster - Full-duplex, Dual-port design. Use ALC technology, adjust the extent automatically. - LED Light Working & Signal Condition Indicators. Big linear power, control intermodulation & scatteration stably. - Dependability stand by the GB6993-86 standard. Compatibility of electromagnetism according to ETS300 609-4. CE and RoHS Approved. - Our products are sent from the US warehouse, about 3-7 business days to delivery. If you have any questions or quality issue, please feel free to contact us. We will do our best to help you solve the problem
Manufacturer: CNCEST
Brand: CNCEST
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