Comcast has launched new Xfinity xFi Pods, which are mesh Wi-Fi extenders meant to combat dead zones in homes. We wrote about the pods last year, but their launch was delayed. They are small pods that can be plugged into an outlet and paired with the xFi Wireless Gateway or the xFi Advanced Gateway. The xFi Pods are supposed to keep checking Wi-Fi connections in the house and monitor their own performance.

To set up the xFi Pods, all you need to do is download the xFi mobile app, which is available for iOS and Android, and the app will give you instructions on how to pair the Pods with the compatible router. Then you can continue to monitor the status of all your Wi-Fi devices through the app.

The xFi Pods come in three-packs for $119 and six-packs for $199, which doesn’t include shipping and handling. They’ll be available in select Xfinity retail stores, from the xFi app, and on the website. Comcast says it plans to introduce a monthly payment plan option as well.