4-IN-1 KARAOKE BLUETOOTH MICROPHONE: This portable wireless microphones can be used as microphone, Bluetooth speaker, loudspeaker and recorder. Using this home karaoke machine singing or record your wonderful voice at any time/where.QUALITY AUDIO SOUND: Equipped with professional audio processor and tuning system, three layers pop filter, creating a stunning KTV live-sound environment and wonderful echo reverberation. It's also a karaoke singing microphone with four magic voices: children's voice, female voice, male voice, old male voice. It will be more fun.LONG USING TIME: Long lasting and playing time up to 8 hours after full charged. Ideal for parties, family evenings and special occasions.EASY CONNECTION AND WIDELY COMPATIBLE: Conveniently Bluetooth connections. This singing microphone can easily connect to all Bluetooth devices like Andriod/smartphone/PC, and YouTube, Smule etc. apps. It's super easy to use for kids or adults.IDEAL CHRISTMAS GIFT: This black Bluetooth wireless microphone shows glowing dancing led lights along with your voice and music volume, make you feel at the center of the disco club. Not only kids but also adults will love it and enjoy lots of fun! If any problem, please contact us immediately, and we'll sort it out for you. *Please use a DC 5V-1A plug adapter for charging.