Converse into the microphone and listen for sound coming from the speakers. Adjust volume levels as needed till you’re happy with how all the things sounds. Marshall and Bose subwoofers are One of the most favored, Mixing design with sonic depth. They're the heart of any surround sound system, https://www.bluetoothspeaker.top/hot-selling-bluetooth-speakers-stereo-bass-outdoor-waterproof-portable-wireless-bt-speakers/