This wireless microphone enhances your karaoke knowledge through the clever DSP chip that increases sound quality by a whopping 30% and generates an excellent echo sound. While this microphone doesn’t come with an SD card, it supports a 32 GB card that You need to use to play music. https://www.bluetoothspeaker.top/outdoor-party-music-powered-audio-single-bluetooth-speaker-black-battery-rgb/