1 Set Tri Band 900 1800 2100 GSM DCS WCDMA 2G 3G 4G Cell Phone Cellular Repeater

Lintratek Set  GSM 900 1800 WCDMA 2100 Tri-Band Booster 2G 3G 4G LTE 1800 65dB Mobile Phone Signal Amplifier Cell Phone Cellular Repeater 4G Antennas   Model No :KW20C-GDW  Uplink 890-915/1710-1775/1920-1980 MHz Downlink :935-960/1805-1870/ 2110-2170 MHz Gain :70±2dB Power Supply :AC110V～220V;DC+12V/2A Connector Type: N female connector   If protection time is running over ,please contact to extend time , if any problem found ,please contact to solve by a friendly way .       ******Important Note ( please read , and please read all descriptions carefully ) ************:  To let a booster work it needs conditions : 1. please be sure that signal outside of your house is good enough to enable booster to work , what good signal is: a). stand there to check if you can make fluent call or not,if can ,then you buy ,otherwise please dont buy ; b). Put your phone there to check its signal strengthness : Android : setting→about phone→status→network ,dbm display shall be at -90dbm to -95dbm around ; IOS : dial *3001#12345#*, dbm display shall be at -90dbm to -95dbm around ;  -100dbm to -105dbm means bad,so please dont buy 2.Please be sure the place where you are going to install is GSM 900MHZ /WCDMA 2100mhz/DCS 1800MHZ   WCDMA 2100MHZ(Band 1:Uplink:1920~1980 MHz;Downlink:2110~ 2170 MHz)   DCS 1800MHZ(Band 3:Uplink:1710~1785 MHz;Downlink:1805~ 1880MHz)  3. ( important ) Install them correctly to avoid interference ( auto osillation ), when interference exist , signal LED will be normal on,but phone can not make call or no signal displayed on phone, for small cars ,it is a big problem to solve. Many buyers meet this problem , and can not solve it well. For avoiding unhappiness ,please do not buy before you are clear about the above .   Need us suggestion,please contact us before biding .We will give you a best solution to get the best signal .Thank you.   Package Including:   1.Tri-band booster for GSM900mhz+WCDMA2100mhz+DCS1800mhz 2. Charger EU Plug (AU/UK/US Adapter will come with the item according to your shipping address