D-LENP I-Signal 5 2G/3G/4G GSM Repeater Cellular Cell Phone Mobile Signal Booster Amplifier Brief Introduction: i-Signal 5 Series Cell Phone Signal Booster, is professional designed for improving the communication quality in any space where leak of signals. Supports the communications in 2G/ 3G, increases signal strength for better voice & data transmission. It works with an outdoor antenna & an amplifier with built-in antenna. Easier installation & more steady operation. As different countries use various frequency bands for 2G/ 3G communication, we supply GSM850/ CDMA800/ UMTS850 & GSM900/ UMTS 900. Considering the circumstance of booster users, some only need a booster to improve the signal in a small area, & others may use in a bigger area. D-Lenp provides various solutions for these customers who are in various using environments. Below is a list of the types we sell in this store. i-Signal 5 i-Signal 5E+ i-Signal 5Y GSM900/ UMTS900 900MHZ, an active antenna used for outdoor signal receiving. one indoor output point for an isolated area. 900MHZ, an active antenna used for signal receiving. An additional output point added for two isolated area or rooms. 900MHZ, A yagi antenna used for outdoor receiving, suitable for suburban area. GSM850/ CDMA800/ UMTS 850 850MHZ, an active antenna used for outdoor signal receiving. one indoor output point for an isolated area. 850MHZ, an active antenna used for signal receiving. An additional output point added for