DUO, DUO+ – Cellular Booster

Indoor Smart Signal Booster for 3G/4G/LTE networks around the world.

Cel-Fi DUO / DUO+

The Cel-Fi DUO/DUO+ are designed to dramatically improve HD voice and data coverage in up to two bands for 3G/4G/LTE for consumers while significantly improving network. Good things do come in small packages: With 3G/4G/LTE support, Cel-Fi DUO/DUO+ are compatible with the highest data services application available. All new patented echo cancellation algorithms enable Cel-Fi DUO/DUO+ to offer even higher signal levels throughout the coverage area than before.


  • 5 Min Setup: Plug & Play
  • Best Signal by 1000x
  • Coverage and Capacity up to 15,000 ft2 (1,500 m2 ) per System (Scalable)
  • Wireless Solution (External Antenna Available in Some Regions)
  • Remote Monitoring and Management via WAVE Platform