This product is a set of five used Bose Double Cube speakers in a Black color. These speakers are designed for surround sound in various configurations such as 5.1, 2.1, 7.1, and 2.0 channels. They feature a multidirectional design for high fidelity sound quality and are compatible with all brands and models. Made of plastic, these wired speakers have a 3-inch driver size and a plug size of standard. With a compact form factor and smart home compatibility, these speakers offer a versatile and powerful home theater speaker system experience.