Main Features: ?? 600M dual-band USB free drive wireless Bluetooth network card ?? Plug and play, easy to use ?? Dual frequency optional, effectively avoiding wireless interference and network congestion, the signal is more stable and smoother ?? External 3.5dBi rotatable antenna, wireless transceiver capability is stronger, and the range is wider ?? Support analog AP function, shared wifi, wireless networking ?? Bluetooth, no network to play, can be used as a Bluetooth transmission adapter, easy to connect with other wireless network devices ?? Strong compatibility, suitable for multiple systems: Window XP, Win 7 / 8 / 10