The older period model boasted a However-spectacular IP67 drinking water and dustproof score, but JBL has selected to up the ante by bestowing a mighty IP68 certification on this latest iteration. The microphone input with echo result enhances your vocal. The line input lets you connect external audio resources https://www.bluetoothspeaker.top/outdoor-waterproof-dustproof-ip67-wireless-bluetooth-speaker-with-effect-lighting/