This mobile phone signal repeater provides the ultimate solution in any area where cellular communications can not work well due to leak of signals. It could also improve indoor electromagnetism environments， protract cellular battery life and reduce radiation of cellphones. It is ideal for house， home， office use.Features:1. High gain， fully integrated 900 MHz antenna system 2. Powerful amplifier enables up to + 85 dB of signal gain including cable loss 3. Intelligent signal processing and real time adaptive operation 4. Automatically adjusts power levels as needed to ensure a consistent coverage footprint 5. Reprogrammable (in the field) enabling spectrum or carrier reconfigurations as needed 6. Auto-Track LED diagnostics displays aid install and operation 7. Not interfere with other wireless frequencies or radio devices 8. Dependability stand by GB6993-86 standard9. Compatiblity of electromagnetism according with ETS300 609-4Package Included:1X Mobile Signal Booster1× Indoor antenna1× Outdoor sucker antenna (comes with 10m cable)1× Power adapter1 x User Manual