1. Professional adjusent buttons Treble / Bass / Volume / Father / Reverb can be adjusted by the microphone. 2. Bluetooth wireless microphone and speakers, two-in-one, no additional connection to work independently. 3. The microphone head has three noise reduction processing, more effective highlight your beautiful voice. 4.1800mAh battery up to 6 hours of singing, enjoy the smart phone APP KTV karaoke effect. 5. Compatibility, suitable for iOS and Android smart phones, iPad tablet PCs, Bluetooth and so on. 6. Multi-purpose: Bluetooth speakers, karaoke singing, car audio, music recording, interviews, podcasts and so on. 7. All the ideal singing voice applications can be used as Bluetooth speakers. Product parameters: 1. Style: Handheld Wireless Microphone Amplifier Speaker 2. Linking Method: Bluetooth 3 Applications: Karaoke microphone 4. Model: telephone microphone karaoke ok 5. Pickup: Capacitor 6. Output power: 5w 7. Frequency range: 100Hz 10khz 8. Maximum sound pressure level: 115 dB 1khz 9. Total harmonic distortion: up to 1% 10. Reverb mode: Echo reverb 11. Power: built-in lithium battery 12. Battery capacity: 1800 mAh Disco light original bass resonator 5w1 1800mah dc5v play time 5 hours Can Support Bluetooth support Pendrive Support SD Card Support FM Radio