This is a great speaker that easily moves from room to room. Features Bluetooth 4.2 technology with a range of 33 feet, and voice prompts for easy pairing. Water resistance…designed with IBX4 water-resistant rating for use at pool in the rain. We used it mainly on our deck. The built-in lithium battery has 8 hours of playtime or you can just leave it plugged in. Additional features: built in microphone for taking calls, supports Siri, and Google voice assistants. I have three of these and am downsizing.