BoomFI Specs

Physical Specifications

Color  Black
Size  4.33inⅹ2.52inⅹ0.59
Weight  4.59 oz
Screen  2.45 inches 
Battery 4000 mA 
Power Input  DC 5V/1.5A 
Power Bank  OTG transfer charging 
Charging About 3.5 hours (in the off state) 
Battery Life About 15 hours 

Network Specifications

Network Generation 2G / 3G / 4G universal 
Bands (FDD) LTE-FDD: B1, B2, B3, B4, B5, B7, B8, B12, B17, B19, B20, B28, LTE-TDD: B38, B39, B40, B41M, WCDMA: B1, B2, B4, B5, B8, GSM/EDGE: B2, B3, B5, B8
Peak Rate Peak value: 150Mbps downlink, 50Mbps uplink 
WiFi  Support 1-8 devices to access simultaneously