POLVCDG B152 Multi-Functional Small Family KTV Karaoke Microphone Sound Integration 1. 40MM full frequency speaker, highly restore the real quality of sound 2. 4 Major functions: Bluetooth speaker, Al Intelligence, memory card playback, multi-function microphone 3. The microphone has 6 sound modes: original voice mode, female voice mode, male voice mode, KTV mode, doll mode and magic voice mode 4. Compatible with all mobile phone K-song live streaming software on the market, free singing 5. Upgrade Bluetooth 5.0 technology, CD quality Bluetooth transmission, strong disturbance resistance with high stability connection, free listening 6. High quality mini microphone sound quality is also hardcore, microphone black technology a variety of sound input 7. Fully compatible with computers, Bluetooth devices can be linked, mobile phones, TV, tablet, musical Instruments, game consoles, etc 8. Multi-playback mode Bluetooth playback, TF card playback, AUX playback, each playback enjoy lossless sound quality 9. Master sound quality hardcore CP configuration 10. The sound of 10W power is louder and brighter, and the signal-to-noise ratio of 75dB is less 11. Bluetooth version 5.0 has more sensitive synchronization and more stereoscopic sound quality 12. Battery capacity: audio: 1200mah, microphone: 500mah 13. Speaker size: 40mm 14. Audio output power 8w 15. Transmission distance: about 15 meters 16. Standby time: 6-7 hours 17. Working current: 20-100MA 18. Pickup: capacitiv