Battery time: 1 hours continuous using .

Working Frequency ：

Frequency 1： 870-960MHz (2G + 4G band 5, band 6, band 8 , band 18 , band 19 ,band 26 )

Frequency 2：1800-1880MHz (2G + 4G band 3, band 9, ) ,

Frequency 3:  2100-2170MHz  (3G + 4G band 4, band 10, ) ,

Frequency 4:  2400-2485MHz   

Frequency 5:  1560-1610MHz   

We can produce and adjust frequency band width according to  your need 

Frequencys of 4G for reference .