[4-IN-1 MULTIFUNCTION] It is not only a wireless karaoke microphone, player, but also a Bluetooth speaker. Using a rechargeable lithium battery system allows you to sing at home, KTV, and outdoor parties anytime, anywhere. You can also use it to save songs in apps on your phone. [Amazing sound magic effect] The built-in 5W speaker gives you a "concert" effect, and the 3-layer mesh filter reduces noise transmission and makes the sound more pure. Voice-changing children's karaoke microphone. There are five sound modes: original sound, child sound, female sound, male sound, and old sound, bringing more fun and relaxation to children. [Colorful LED night light] Use colorful LED lamp beads to light up the night and create a perfect singing atmosphere. It is an ideal birthday/holiday gift. Connect it via Bluetooth or 3.5 mm audio cable (included), let us sing anytime and anywhere through the connection.Large-capacity battery2400mAH large-capacity lithium battery, guaranteed to be used for about 5-10 hours after charging for 2 hours. Compatible with all Bluetooth devices. Smartphones, iPods, iPads, Macs, tablets, laptops, TVs.