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 cuts down the amount of data inside of a digital audio file so it can stream reliably about a Bluetooth connection. We’ve tested about https://www.bluetoothspeaker.top/bluetooth-5-4-speaker-audio-ipx5-waterproof-wearable-bluetooth-speaker/