Thanks for the shoutout! Product Manager at Relay here. We also have an API if you want to build your own solution with it. relaypro.com/api & api-docs.relaypro.com
We launched our Relay Button API publicly for the first time, you can see it here: api-docs.relaypro.com. We've had folks use our button for everything from Slack integrations to Remote call buttons and are excited to power the future of Voice Powered IoT solutions.
Our button includes 4G LTE cellular connectivity out of the box, makes it easy to have 2way voice based interactions with cloud services. We're rapidly adding other APIs from our core product (GPS, Battery alerts, Geofencing). HW Pricing is $100/device and service costs are variable depending on use case.
Relay Pro (relaypro.com) is launching a beta for API access to our Relay device. I figured some of you might be interested in signing up and trying it out. Relay is a small portable cellular connected button with API access to GPS, LED Lights, Microphone & Speaker. It's rugged and durable, waterproof and drop resistant. Beta access is free for the first 3 months ($149/year after that).
Stuff you can use it for:
Control other cloud connected IoT devices (doors, fans, thermostats),
Create a doorbell in a remote location (ask to record their name so you know who's there), Voice search against a cloud database, Audible/LED alerts when thresholds are triggered (think pager with Siri)
https://github.com/relaypro