The Amazon Echo Auto Smart Assistant Bluetooth Speaker with Alexa in black is a smart speaker by Amazon that is compatible with other Amazon devices. It features a system configuration of 1 + subwoofer, surround sound formats of Dolby Digital, and smart home compatibility with Alexa. The speaker is made of plastic, has an RMS power of 15W, and offers various connectivity options such as Bluetooth, wired connection, and USB. Perfect for creating a seamless audio experience in your home, this speaker combines sleek design with powerful sound quality.