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Karaoke is better in your own way!


• Sleek and attractive streamlined design.
• Convenient 6.3mm audio output jack with adjustable angles for
easy plug-and-play.
• One-touch frequency scanning and synchronization for quick
• Operates in the interference-free ultra-high frequency range for
stable transmission.
• Up to 100 selectable frequency points for multiple system use.
• High-performance wireless audio processing chip for
low-distortion sound.
• Wideband Extended Dynamic Range technology for effortless
singing and optimal performance.
• Mic Echo and music volume adjustment functions.
• Mic first function for ducking background music.
• Built-in battery management for prolonged battery life.
• Versatile connectivity options for various music sources.
• Ideal for outdoor singing, teaching presentations, and home


Wireless Microphone Alpha Works D2

  Microphone Receiver
Frequency bands 640-690 MHz 640-690 MHz
Frequency bandwidth 25 MHz 25 MHz
Modulation FM FM
Frequency response 50-15kHz 50-15kHz
T.H.D@ 1kHz typ. <0.5% typ. <0.5%
Signal-to-noise ratio typ. 100dB(A) typ. 100dB(A)
Transmit power 10mW, 5mW -
Power supply voltage 2x1.5V (AA) 3.7V/800mA
Operating time >8hr -
Operating range ≈ 15 meters -
Audio output - 6.35mm


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