The Wi-Fi Sharing Device makes it easy for guests and visitors to connect to your Wi-Fi network without complicated passwords. Simply tap the device with your phone (or scan the QR code) to log on instantly, without the hassle of typing in long passwords. Now, all of your houseguests can have access to your Wi-Fi in a flash. Ideal for game nights, babysitters, book clubs, play dates, vacation properties, etc. No batteries or power source needed.