The Wireless Karaoke Microphone Speaker - F6 is the perfect device for an immersive karaoke experience. With high-fidelity full-range speaker and echo reverb mode, you'll feel like a professional singer. Its Bluetooth 5.2 technology allows for a 15-meter range, and the 3.7V lithium-ion battery provides 4 hours of usage. Suitable for ages 3 and above.