Description WiFi Antenna 12dBi 2.4GHz with RP-SMA Connector 2-Pack( Screw-On Swivel) | high gain and long range wireless antenna.Compliant with 802.11b/g/n/ac and wireless LANs,Bluetooth,Zigbee,Xbee and other WLAN applications.(2.4GHz)|It is perfectly suited for close-in systems, typically found in apartment complex installations, neighborhood networks, industrial etc.If you do need to get distance from your WiFi connection such as a detached garage, This longer antenna can be a good option.-About how to choose WIFI antenna, please read the product description.Frequency:2.4GHzVSWR less than or equal to 1.5Polarization:VerticalDirectivity: Omni DirectionalImpedance:50Temperature:-55 ~ +200Weight: 70gColour: blackMaterial: plasticSize: Length: about 39cmPackage Contents:2 * AntennaOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.