Pay attention for the frequency range from the Altavoces Bluetooth �?the broader the range, the better the overall sound quality. Think about brands like Ultimate Ears that offer Bluetooth microphones for even clearer audio. Another way to gauge the audio quality of portable Bluetooth speakers is by looking at https://www.bluetoothspeaker.top/bass-subwoofer-stereo-with-rgb-light-transparent-wireless-waterproof-bluetooth-speaker/