As of this writing, Amazon has thousands of sources for flash briefings.  The sources they include can be hyper-local like your local news station. Amazon also has specific topics like tech or business, or general info.  Many of these sources, like NPR, are podcasts provided by Tune-In.  These briefings are audio files Alexa plays for you.  Other sources like the AP news stories are read in Alexa’s voice.  I wish Amazon told you which ones were audio files because her voice drones on after a while.  I hope I get to change her voice like I can with Siri.  Right now, you can just change the language to the English (UK) or German.
The flash briefing skill submission process provides the steps to submit descriptive information about your skill and configure one or more feeds for each skill. You can then test your skill in your Alexa-enabled device and provide additional information about how you handle customer data and privacy. Once you've provided this information, you can submit your flash briefing skill for certification and use by customers.
If you think you’d like a briefing in the future, but not now, just toggle it off. If you want to permanently disable a Flash Briefing skill, you’ll need to head over to the Skills section in the app and then tap Your Skills.  Find the skill you want to disable and then tap Disable Skill. You don’t delete the skill, which makes sense since nothing installs on your Alexa device.

The first of the Alexa flash briefing options to include is an error message. Alexa will read this to your audience if your briefing is unavailable. Next, you’ll be asked to paste the RSS feed provided by your audio host. The “preamble” field is a short, introductory cue that Alexa will read before delivering your briefing. Finally, fill out any remaining Alexa flash briefing options — frequency, briefing name, category/genre and more — and soon you’ll be ready to launch.
From that point on, simply plug in the Echo device into a regular 110V. wall outlet, it comes with a plug in adapter. There are no batteries in this device, although some have them. A NOTE HERE" YES, YOU CAN UNPLUG IT WITHOUT IT LOSING ITS BRAINS AND REQUIRING REPEAT SET UP. So though not specified anywhere I read it evidently has some on board nonvolatile memory built in that will allow this. ( i spent several research sessions attempting to find this out, and finally had to bite the bullet and just try it. ) I moved it from one room location to another and within a few seconds it greeted me and said it was operational. NOW I AM ONLY AN OLD GUY WITH PRETTY GOOD HEARING ABILITIES YET, (NOT EXACTLY AN AUDIOPHILE ) BUT WITH DOLBY DIGITAL SOUND, THIS IS ONE NICE SOUNDING SPEAKER SYSTEM,
Flash briefings are great for quickly informing your audience, but a fully interactive Alexa skill or Google Assistant action will allow even more freedom. With a well-designed skill, you can provide personalized service and content to your audience at any time — not just once a day or week. With a voice chatbot analytics tool like we provide as Botanalytics, you can also receive helpful usage data to get to know your audience even better.

Alexa is the name of Amazon’s voice-based smart home assistant. While some folks will use the names interchangeably, Alexa is actually the name of just the AI—not the product. You can use Alexa in Amazon’s Echo products. These now include the original Amazon Echo, the smaller Echo Dot, the Amazon Tap, the Echo Look, and the newest addition to the lineup, the Echo Show.

Amazon blamed the incident on "human error" and called it an "isolated single case." However, in May 2018 an Alexa device in Portland, Oregon, recorded a family's conversation and sent it to one of their contacts without their knowledge. The company dismissed the incident as an "extremely rare occurrence" and claimed the device "interpreted background conversation" as a sequence of commands to turn on, record, send the recording, and select a specific recipient.[78]