800-900-1800-2100 Mhz 2G-3G-4G four band telephone repeater (GSM-WCDMA-LTE). Up to 1000 m2 of coverage.

Technical specifications:

900 MHz: UP: 890 ~ 915 MHz, DOWN: 935 ~ 960 MHz 
800 MHz: UP: 825 ~ 835 MHz, DOWN: 890 ~ 915 MHz
1800 MHz: UP: 1710 ~ 1785 MHz, DOWN: 1805 ~ 1880 MHz
2100 MHz: UP: 1920 ~ 1980 MHz, DOWN: 2110 ~ 2170 MHz

power -70dbm 
gain 60 ± 3Db 65 ± 3Db
50Ω impedance
AC Power Supply 110/220 V (used AC / DC Adapter 12 V dc)
insulation> 70dB
Output power: 20dbm
Diemension article 240x180x20mm
Connection mode N connector
LCD display function

signal coverage area:
1. Support Maximum coverage area is 1000 square meters. (will depend on the area condition)