Bluetooth speakers all connect to some resource device by way of Bluetooth, but that isn’t the only real audio connection available for you. Some Bluetooth speakers still have a expensive headphone jack, so you can tether the speaker to your phone by wire. It was lately released in August https://www.bluetoothspeaker.top/outdoor-ipx7-waterproof-speaker-box-hifi-extra-bass-bluetooths-party-speaker/