The 801165 wireless amplifier: Works with all cell phones and laptop data cards, significantly improves voice and data signal quality, receives and transmits better than your cell phone, extends cell phone battery life, works with generations of CDMA, TDMA, GSM AND high speed data technologies, improves data communication rates needed for 3G technologies and has automatic gain control up to 65dB, 2dB gain step 30-60dB and automatic gain adjusting in the event of oscillation and/or overload.

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