Acoustic Solutions Wireless Speaker is a device that combines the functionality of a Bluetooth speaker, a WiFi speaker, and a smart home assistant with Amazon Alexa built-in. It allows you to stream music wirelessly from your mobile devices via Bluetooth or WiFi, control your smart home devices with voice commands, and access a wide range of Alexa skills. The speaker features a 3" driver and a passive radiator for enhanced sound quality, and it supports multi-room audio, allowing you to connect multiple speakers together for a synchronized music experience.