What happens when you have 2 or more Amazon Echos? Will they conflict with each other? Will they play the same song or different songs? How do timers, skills, shopping lists, to-do lists, and calendars function across 2 devices?
Alexa Companion App - https://alexa.amazon.com

Please see my updated videos:
Part 1: Basics -    • Managing Multiple Amazon Echos Part 1...  
Part 2: Voice Calling and Notifications -    • Managing Multiple Amazon Echos Part 2...  
Part 3: Echo Show -    • Managing Multiple Amazon Echos Part 3...  
Part 4: Multi-Device Music Sync -    • Managing Multiple Echos Part 4: Multi...  
Part 5: Drop-in with Echo Show and Echo Spot -    • Managing Multiple Amazon Alexas Part ...  

Amazon Echo - http://amzn.to/2gz1iil
Amazon Echo Dot 2nd Generation - http://amzn.to/2hHy8z5