If you start music on the Bose Portable Smart Speaker through Wi-Fi (using a voice assistant or the Bose Music app, for example) and then you carry the product away from your Wi-Fi network, at some point the speaker will lose its Wi-Fi signal and the music will stop. At that point, if you want to keep playing, just press the Bluetooth button on the speaker to connect to your mobile device and play content from there. If you start playback over Bluetooth away from Wi-Fi and then bring the speaker home to a Wi-Fi network, it will reconnect to Wi-Fi in the background without interrupting your music.