The JBL G0+ contains a frequency response range of 180Hz �?20 kHz. Apart from common music playback, the speaker incorporates a noise-cancelling microphone which can be used to take handsfree calls, also. Powered on, a crimson LED aligns with the Bluetooth button as well as a 5-section battery indicator https://www.bluetoothspeaker.top/waterproof-outdoor-bluetooth-speaker-rgb-color-bass-high-quality-loud/