The Echo Dot has long been one of Amazon’s most popular Alexa-backed devices, and it’s getting yet another redesign. This time around, you’ll find the same four-button control scheme atop the device, but the previous 7-microphone array has been replaced with just 4 microphones. We first reported on this change when the device leaked back in

Source: Hot Hardware – Amazon Launches Refreshed Echo Dot, Echo Plus, 10-inch Echo Show And New Smart Plug