Can be connected by Bluetooth 5.0 , with mixing effect, subwoofer sound quality. Equipped professional audio processor, and tuning system, karaoke microphone features greater volume and better sound quality. Built-in rechargeable battery lasts up to 2-3hours on a full charge.Bluetooth microphone can be connected to a smart device via the Bluetooth or iPhone, iPad, Android phone, tablet, PC, etc. You can enjoy singing along with any music or karaoke app wherever you are. After the two microphones are switched to the duet mode, the happy time of duet singing can be started together.Magic sounds bring more laughter and fun to families and parties. The original sound can be eliminated in one quick- click, making the song list into an accompaniment in seconds. The echo effect provides a better experience and immersion. The recording function can record every growing and happy time.With the microphone, everywhere is the stage. It will bring lots of fun for all the family. As a gift for children, this microphone will develop their interest in singing and grow their confidence. Give it to adults, bring them relaxation and happiness. The music will bring families and friends closer.