Zanfee 4-in-1 Wireless Bluetooth Karaoke Machine with Dancing LED Lights. Portable handheld karaoke machine perfect for home KTV and gatherings. Functions as a microphone, Bluetooth speaker, player, and recorder. Ideal for family fun, kids singing, and creating a lively atmosphere. Experience superior sound quality with a professional audio processor, tuning system, and triple-layer noise filter for an immersive KTV live sound environment. Enjoy five voice modes: original, child, female, male, and old man for added fun. Easily connect to any Bluetooth-enabled device (smartphones, PCs, laptops, iPads). Supports TF card, USB, AUX, and radio functions. Long-lasting playtime with a built-in 2400mAh rechargeable battery, offering 8-10 hours of continuous use. Fast charging and extended battery life ensure uninterrupted entertainment. The perfect gift for any occasion, creating an ideal singing atmosphere for festivals and parties. A unique present for both children and adults, ideal for holidays, birthdays, and celebrations.