Echo Dot can hear you from across the room, even while music is playing. When you want to use Echo Dot, just say the wake word “Alexa” and Dot responds instantly. If you have more than one Echo or Echo Dot, Alexa responds intelligently from the Echo you're closest to with ESP (Echo Spatial Perception).
Echo Dot comes ready to connect to your Wi-Fi. The Alexa App is compatible with Fire OS, Android, and iOS devices and also accessible via your web browser. Certain skills and services may require subscription or other fees.
Echo Dot, power adapter (9W), Micro-USB cable, and Quick Start Guide