Features: 1. Professional tuning button, treble/bass/volume/pro/reverb can be adjusted through this microphone. 2. Bluetooth wireless microphone and speaker, 2 in 1, can work independently without additional connection. 3. The microphone head has 3 times noise reduction processing, which more effectively highlights your beautiful voice. 4. 2600mAh battery, up to 8 hours of singing, enjoy the effect of smartphone APPKTV karaoke. 5. Strong compatibility, suitable for iOS and Android smartphones, iPad tablets, Bluetooth, etc. 6. Multi-purpose: Bluetooth speakers, karaoke singing, car audio, music recording, interviews, podcasts, etc. 7. All applications of ideal singing to speech can be used as a bluetooth speaker.