Tp link 4g travel router 4g lte supported with up to 150mbps download and 50mbps upload speeds supports up to 15 devices simultaneously all useful information at a glance with screen display 2550mah battery for up to 10 hours of working selectable 24ghz or 5ghz dual band wifi equipped with a micro sd card slot for up to 32gb of optional storage just insert a 4g sim card into the device to instantly establish a selectable dual band wi fi hotspot its pocket sized design and powerful 2550