Wireless Router Extender, Coodio Wireless Router Range Extender Antenna [Booster] Directional [Enhancer] Boost Wi-Fi Signal - Black Boosts Wi-Fi signal in a specific directions and more range. Get more stable and strong signal for your wireless router. Plug and Play - Insert this directional enhancer into your wireless router antenna and you are ready to go. Wireless signal enhancement can be achieved with this smart booster. Slim design, can fit most of the antenna of the wireless router including Linksys, NetGear, TP-Link, Tenda, D-Link, Netcore and other.