The Ultimate Ears Blast Wireless Bluetooth Speaker in Graphite Black is a portable speaker system that offers universal compatibility with various brands and models. With smart home compatibility with Alexa, this speaker allows for seamless integration into your smart home setup. The sleek black plastic design, along with features like Bluetooth connectivity and waterproof functionality, make it a versatile and convenient choice for enjoying your favorite music on-the-go. Charger included for added convenience.