The B5771 from Antenova is a 2.4 GHz swivel antenna for Bluetooth, Wi-Fi, 802.11a/b/g/n and ZigBee Applications. This easy to integrate linearly polarized antenna has an efficiency of up to 70%. It has an antenna blade made of a flexible material that can be rotated 360 degrees. The B5771 is intended for snap-in mounting and uses a ground plane to radiate efficiently. It measures 14.9x12x48 mm, weighs 3.3g and is ideal for applications in development tools, test equipment and routers.