Product Name: Universal U Segment Microphone/KTV Microphone/Bluetooth Microphone/Professional Wireless Microphone/Mobile Microphone Model NO.: YUDM Series/YKDM Series Output Impedance: 50-1000? Wireless Technology: Bluetooth Connector(s): Proprietary Sound Field Force: Pressure Type Transducer Principle: Electrodynamic Microphone Sound Channel: Stereo Directivity: Uni-direction Signal Transmission: Wireless Application: Music, Voice, Recording, Meeting, Measurement, Amplify Style: Handheld Microphone Type: Wireless Cover: Plastic or metal Color: Pink/White/Gray…… Trademark: OEM Transport Package: Color Box Specification: CE ROHS Origin: China Product Description other type can be supplied if you need.Features:-Professional adjustment buttons Treble /Bass./ Volume / Father / Reverb can be adjusted by the microphone.-Bluetooth wireless microphone and speakers, two-in-one, no additional connection to work independently.-The microphone head has three noise reduction processing, more effective highlight your beautiful voice.-Bluetooth 4.0 connectivity, able to be paired with Bluetooth enabled devices-Excellent sound quality with echo-reverberation effect-All the applications of ideal singing to speech sound can be used as a bluetooth speakers.--Frequency response tailored for vocals, with brightened midrange and bass rolloff--Uniform cardioid pickup pattern isolates the main sound source and minimizes background noise--Pneumatic shock-mount system cuts down handling noise--Effective, built-in spherical wind and pop filter--Legendary quality, ruggedness and reliability--Cardioid (unidirectional) dynamic