The built-in microphone With this speaker will pick up your voice conveniently and supply clarity through hands-free calls. You may hand up or get calls by way of the play button, which is located about the side of your device. Harry has become the Reviews Workers Writers at TechRadar. https://www.bluetoothspeaker.top/new-mar-shall-waterproof-black-portable-speaker-with-light-show-bluetooth-speaker/