This wireless microphone enhances your karaoke knowledge through the clever DSP chip that enhances sound quality by a whopping 30% and results in a great echo sound. It's a tweeter and a woofer driver with stereo channels. It has an IP67 waterproof rating with a dual passive bass radiator. https://www.bluetoothspeaker.top/professional-high-quality-wireless-bluetooth-speaker-color-led-lighting-battery-sound/