PROUTONE Dual Band Cell Phone Signal Booster 850/1900MHz Band 2/5 Cellular Repeater Kit for Home & Office Work with All Carriers GSM 2G 3G Work with all US carriers 2G/3G and Sprint 4G LTE, boost cell phone voice & data signal, enjoy better voice quality, faster uploads and downloads. Large coverage, up to 2500sqft, supports multiple users simultaneously. Easy to set up with all hardware and step-by-step instruction, no technical experience or extra fee needed. 30 Days Money-Back Guarantee, 3 Months Free Replacement, 1 Year Manufacturer Warranty. Notes for purchase: there should be 1-2 bars signal outside, then booster would works well and amplifier more bars signal to inside house. Indoor <span class="a-text-bold">Dome omni antenna</span> rebroadcasts boosted cellular signal to multiple mobile devices.This antenna is suitable for installation in the center of the room and radiates all directions. Helps extend voice and data coverage in buildings. 5dBi Gain Antenna with 5m (about 16.4 feet) Cable Frequency Range: 824-849MHz,869-894MHz(Band 5)/1850-1910MHz,1930-1990MHz(Band 2) Max. Output power:22dBm Max. Gain :65dB I/O Port : SMA-female on both ends Powered by a standard wall-outlet AC power supply FCC Certified:The product complies with the appropriate FCC licensing and labeling requirements. Outdoor<span class="a-text-bold"> antenna omni-directional c</span>aptures cellular signal from the cell tower. Includes mounting screw and connects to booster with RG-58 coaxial cable (32.8 ft included with kit). Mount the antenna outside the house and for best performance,the higher the position of the antenna installation,the greater the coverage of the ground,the better the effect 8dBi Gain Antenna with 10m (about 32.8 feet) Cable The <span class="a-text-bold">Omni outdoor antenna </span>set up on the roof,use your cell phone to determine the area of strongest signal and the omni-directional antenna captures cellular signal from all directions.<span class="a-text-bold">the antenna installation the higher the better.</span> Place the Host where you want to create a Cell Zone.For the widest possible signal area,position<span class="a-text-bold"> the</span> <span class="a-text-bold">Host near the middle of a room.</span> Connect outdoor antenna to outdoor port in repeater machine through cable. Connect <span class="a-text-bold">indoor antenna</span> to indoor port in repeater machine and place it where you need signal.but please keep indoor antenna and outdoor antenna separately by wall. Plug <span class="a-text-bold">power adaptor</span> into AC power socket and finish installation. Dial<span class="a-text-bold"> *3001#12345#*</span>, then press Call button; Click <span class="a-text-bold">&#039;Serving Cell Info</span>&#039;; Check &#039;<span class="a-text-bold">Freq Band Indicator</span>&#039;. If it shows 5 or 2, please choose this booster. If the test result is other number, please choose another booster according to your band. Download and install the app: <span class="a-text-bold">LTE discovery</span>; Press &#039;<span class="a-text-bold">SIGNALS</span>&#039;; Check &#039;<span class="a-text-bold">EARFCN</span>&#039;. If it shows 5 or 2, you can choose this booster. If the test result is other number, please choose another booster according to your band.