The T-Mobile Franklin T9 Wireless Wi-Fi 4G LTE Mobile Hotspot (RT717) is a portable modem that allows users to connect to the internet wirelessly using cellular network technology like 4G, 3G, and LTE. With a sleek black design, this device is unlocked and features dual-band connectivity, making it compatible with various devices including PCs. The hotspot is branded by T-Mobile and offers reliable wireless access for on-the-go use, perfect for those who require mobile broadband connectivity.