The Go four is amongst the initial portable Bluetooth speakers available to incorporate Auracast Bluetooth technological know-how. Auracast permits you to broadcast a signal to multiple Auracast-equipped speakers and headphones from a single supply. The Ultimate Ears Wonderboom has long been our top pick for more than seven years, https://www.bluetoothspeaker.top/5-0-wireless-bluetooth-speaker-hifi-led-outdoor-loudspeaker-music-surround-bass-box/