Cel-Fi DUO improves 3G and 4G LTE cellular service by eliminating dead zones and dropped calls. With 100dB of gain, it will improve cellular service, and reduce your cell phone’s power requirements to extend its battery life. The Cel-Fi DUO covers up to 13,000 sq. ft. (approximately 1,200 m2) of indoor space per system. It’s fully self-contained and self-configuring, requiring no external antennas or wiring. Simply plug it in to boost indoor cellular coverage.
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