Amazon's Echo Buttons can now trigger Alexa Routines - Gearbrain
Now Ask Amazon's Alexa Follow-Up Questions Without Trigger Words
Amazon.com: BobWire DAT1 Adds a 12V Trigger! Compatible with SONOS Connect, Echo Link, ChromeCast Audio, TV, Anything with an Optical Audio Out. Auto Power On Amplifiers & Fans. NOT Compatible with AV
Amazon Echo Link Review with added 12V trigger from Bobwire DAT1 - YouTube