Bluetooth codecs: For reasons I cite in my website about Bluetooth audio codecs, we didn’t mandate the inclusion of any specific Bluetooth codec—the technology that decreases the amount of information inside of a digital audio file so it might stream reliably over a Bluetooth connection. This speaker is no exception, https://www.bluetoothspeaker.top/wireless-speakers-strong-bass-home-theater-subwoofer-party-stereo-rgb-bluetooth-speaker/