The Amazon Echo Dot 3rd Generation Smart Speaker Alexa in Charcoal is a brand new sealed product compatible with Amazon devices. This smart speaker features a sphere shape in black color and comes with a subwoofer for enhanced sound quality. With Alexa smart home compatibility, Bluetooth and WiFi connectivity, and voice search features, this speaker offers a seamless and convenient user experience. Made of plastic and manufactured in 2018, this smart speaker delivers 13.1 channel surround sound and has a 15W RMS power output for clear and immersive audio playback.