Signal booster

Material: Metal+Electronic Components.
– Size: 19.5 x 18 x 2cm.
– GSM/DCS/3G(900/1800/2100MHz)
– Working System:
1.GSM 900MHz
2.3G WCDMA 2100MHz
3.B3 LTE 1800MHz
– Frequency Range:UPlink:890-915MHz/1920-1980MHz/1710-1785MHz
– Downlink:935-960MHz/2110-2170MHz/1805-1880MHz
– Gain:70db
– Output power:20dbm
– Ripple in the band: less than 6db
– Power supply:AC:100-240V,50/60Hz
– DC:12V 2A