Alexa everywhere: Triby is a portable speaker with Amazon smarts

Amazon's Alexa virtual assistant is spreading to third-party hardware with the Triby connected speaker. The 199 Triby from Invoxia is in some ways similar to Amazon's Echo speaker. Using Alexa voice commands, it connects to Internet radio services such as Pandora and Spotify, delivers the weather and other information, lets you buy stuff from Amazon, and can control a range of connected-home devices. And like the Echo, the Triby supports always-on voice commands, so you can control these functions from across the room. But while Echo requires a power cord to operate, Triby has a built-in battery that lasts up to two weeks on a charge, and provides eight to 10 hours of music playback.