Just like with our SoundLink Revolve and Revolve+ portable speakers, this 360-diploma design avoids the positional sweet places and frequency drop-offs of speakers that just aim forward, but this time, with the extra power and more robust bass that comes with a different shape and a third passive radiator. https://www.bluetoothspeaker.top/bluetooth-hard-hat-speakers-top-wireless-music-baseball-speaker-hat-with-bluetooth-speaker/