You can easily use these WiFi speakers with battery and Bluetooth outdoors. Thanks to the built-in battery, you don't need a power supply. The battery life of the speakers range from 8 to up to 24 hours. That way, you can listen to your favorite music the entire day. You can connect the speaker to your smartphone via Bluetooth when you're not at home and don't have a WiFi signal. At home, you can connect multiple WiFi speakers with each other via your home network. This allows you to easily control them together or separately via 1 app. You can also create a multi-room system where you place your speakers in different rooms of your house. This way, you hear your playlist throughout your entire house.