Joylive Yagi Wireless Antenna 2.4ghz 20dbi 802.11b/g Rp-sma W-lan Wifi Wan Repeater Easy to install. 2.4GHz Yagi Antenna RP-SMA female pin. Directional antenna. RP-SMA connector, 2.4GHz 802.11b/g. Attention: This is an outdoor antenna only. It doesn't work alone. You need a cell phone signal booster to work with this antenna This Outdoor Yagi directional Antenna includes mounting parts for easy mounting on either a flat surface or a pole