4 in 1 karaoke wireless microphone: can be used as a microphone, Bluetooth speaker, recorder, loudspeaker. It also has a convenient USB port which can play music directly. Short press the "On/Off" button, it can switch modes. Colorful LED light: Built-in 28 dancing LEDs, flash with music change when singing. And the light conversion jump with the rhythm of the music creates a perfect singing atmosphere for festivals or parties, lets you sing freely, and brings more fun and relaxation. Two-way connection and High compatibility: Bluetooth connection and 3.5mm audio cable connections. Wireless karaoke microphones can connect to all bluetooth devices including Android iOS smart phones, PCs, laptops and APP and any other bluetooth devices. Bluetooth connection has a large distance of 10m. Long working time: built-in 1800mAh rechargeable battery, support 4-6 hours of continuous singing and 6 hours of music, enjoy your moment singing for a long time, create your own mini KTV anywhere anytime. Excellent quality: support AUX audio output, memory card, USB disk to play music. Support micro SD card up to 32GB. A best gift for anyone who loves to sing. A unique gift for children and adults.