The latest generation of Echo Dot has a sleek, rounded look and fuller, richer sound! It has all the hands-free convenience of Alexa: stream music, make calls, control smart home devices, ask anything. It pairs with compatible Echo devices for stereo sound and intercom capabilities. 3.5mm aux. output; Bluetooth and Wi-Fi. 4 diam. x 1 3/4 h, with stylish fabric cover. | Amazon Echo Dot Speaker: 3rd Generation, Sandstone