A top quality antenna that will reduce your exposure to harmful electromagnetic radiations if used properly with your Sierra Wireless Athena (instructions included), while increasing your Sierra Wireless Athena performance and decreasing dropped sessions. This antenna employs powerful 3MTM adhesive if permanent installation is desired, and includes the direct-connection adapter for the Sierra Wireless Athena . It comes with about eight feet of cable. Antenna can be attached to the back of the laptop display, on a car or home window, etc. The adapter is easily replaceable so that if you change your device you can simply buy the new connection.