Bluetooth speakers all connect to the supply device via Bluetooth, but that isn’t the one audio connection available to you. Some Bluetooth speakers nevertheless have a dear headphone jack, so you're able to tether the speaker to your phone by wire. Still wondering if it makes a real distinction? https://www.bluetoothspeaker.top/hot-selling-bluetooth-speakers-stereo-bass-outdoor-waterproof-portable-wireless-bt-speakers/