Mobile Wi-Fi Hotspot TP-Link M7350 4G LTE MiFi Support SD Card Slot Unlocked Long-lasting battery: 8 hours; manufacturer's A creative little device for a busy life 8 Hours of Mobile-Friendly 4G Sharing The M7350 can run for 8 hours at full capacity and 480 hours on standby thanks to its robust 2000 mAh battery. A micro USB cable can be used to recharge the device for greater flexibility.