Concentrate into the frequency range of your Altavoces Bluetooth �?the broader the range, the better the general sound quality. Consider brands like Ultimate Ears that offer Bluetooth microphones for even clearer audio. Another strategy to gauge the audio quality of portable Bluetooth speakers is by looking at decibel ranges https://www.bluetoothspeaker.top/waterproof-ipx7-outdoor-bluetooth-speakers-waterproof-shower-speaker/