Amazon.com is working on a pair of 'smart glasses', the Financial Times reported on Wednesday.

The device, designed like a regular pair of spectacles, will allow Amazon's digital assistant Alexa to be summoned anytime at all places, the report said, citing people familiar with the plans.

A special audio system in the device will allow the wearer to hear Alexa without inserting headphones into his or her ears, according to the report.

Amazon did not respond on requests for a comment.

Earlier this year, Alphabet re-introduced its own wearable glass headset, Google Glass, after discontinuing its production last year.