TOJOIN Dual Band WiFi ,Operating frequency is 2.4GHz (2400 - 2500 MHz), 5.85GHz (5700 - 5800MHz); Gain is 5dBi. The maximum standing wave ratio is 2. Impedance is 50 ohms. The interface type is SMA-Male. This WiFi Antenna is widely used in Wireless Network Router, WiFi AP Hotspot Modem, WiFi USB Adapter, WiFi IP Security Camera, Backup Camera, Wireless HDMI Extender, Quadcopeter Controller and so on. It's antenna case is made of hard plastic, sturdy and durable. The internal is using high quality circuit board which ensures maximum and stable signal quality. This wireless wifi antenna is easy to install, simply replace current antenna to increase signal strength.