How many echoes can you pair together?

Hello, this is a multi-answer question. You can pair up to 2 Echo devices and 1 Sub together to create stereo sound for a single room. You can also create a Multi-room music group to pair more than 2 devices together and have them all play the same thing at the same time. I have added instructions on how to accomplish both of these options below. You can have stereo sound and improved music playback in the left and right channels, pair two supported Echo devices. To set up an audio system, follow these steps: 1. Open the Alexa app. 2. Select Devices. 3. Select Plus. 4. Select Set Up Audio System. 5. Select Stereo Pair, and then follow the on-screen instructions. You can use the Alexa app to create a Multi-Room Music group. To create the group, follow these steps: 1. Open the Alexa app. 2. Open Devices. 3. Select the plus sign, and then select Combine Speakers. 4. Select Multi-room music. 5. Follow the instructions in the app to complete the setup. A Multi-Room Music group named ""Everywhere"" is automatically created when you have more than one device. To edit this group, follow step 1 above, scroll down to Speaker Groups, and select Everywhere. Hope this helps you out, have a great day!