Echo Dot 4th Generation Teardown - iFixit

Echo Dot 3rd Generation Teardown - iFixit

Echo 4 - Teardown and few measurements

Echo Dot Teardown - iFixit

Echo Dot 3rd Generation - iFixit, echo dot 3

Echo - Wikipedia

Echo Dot 2nd Generation 4-in-1 WiFi/Bluetooth/FM/GPS

Echo Dot 3rd Gen Smart speaker Teardown, echo dot 3

Echo Dot 4. Generation - iFixit, echo dot 4

Echo Dot 4th Generation Teardown - iFixit

Echo Dot 3rd Generation Teardown - iFixit