Not quite as ambitious as some designs to have come and gone before them, the company's Echo Frames keep things relatively simple in hopes of making its Alexa voice assistant a key part of a user's everyday life.

It might seem a little unexpected for a huge tech company to launch a pair of smart glasses in 2019 that feature neither a display nor any type of camera, but it appears Amazon is looking to not bite off more than it chew.

Its Echo Frames are designed for everyday use, with owners able to take them to their optometrist to have their required lenses installed, and Amazon claiming they will accommodate most prescriptions.

Built into the frames is a set of four tiny speakers along with a pair of two beam-forming microphones. This setup allows wearers to engage with Alexa when they're out and about, whether that be asking for some news or directions, turning on a smart light with their voice, setting reminders, or scheduling appointments in their calendar.