The Amazon Echo Sub is a 6" smart speaker with a sleek design in charcoal black color. It is designed by Amazon and is compatible with Alexa for smart home functionality. With an impressive RMS power of 100W, this speaker delivers high-quality sound for a premium audio experience. It offers connectivity options such as Bluetooth and Wi-Fi, making it easy to connect to various devices in your smart home setup. Made from a combination of plastic and fabric materials, the Amazon Echo Sub is a stylish and powerful addition to any living space.