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MadBoy® U-TUBE 20 wireless dual channel karaoke microphone set


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Fed up with lots of wires? Get yourself a pair of wireless microphones. MadBoy® U-TUBE 20 wireless dual channel microphone set, gives you freedom to perform.

MadBoy® U-TUBE 20 works off AA batteries, which gives you up to 20 hours of wireless freedom.

It works with the less-crowded UHF frequency band, giving you clearer interference-free sound.  Both mic channels have their own volume control and you can either output both channels independently or together using the "mixed output" channel. An auto mute circuit eliminates the popping noise when switching the unit on or off. Our system is designed and manufactured to be dependable, problem free, versatile and easy to use. 

Why you should buy our wireless mics?  
We had end-users make a blind test, comparing MadBoy® U-TUBE 20 mics with other more expensive brand mics.
How were we ranked? 

Take that same test your self...


  • 2 x wireless handheld microphone. Mics works with AA batteries.
  • Strong metal grills protects the cartridge and help reducing breath sounds and wind noise
  • 1 receiver with 2 unbalanced mic outputs (6,3 mm Jack) and 1 mixed output (6,3 mm Jack)
  • Individual volume controls for both microphones
  • LED battery indicator on microphones
  • Signal indicators on receiver shows when radio frequency signals are received
  • Separate antennas for both channels makes receiving clearer
  • UHF-frequency 863 MHz - 865 MHz
  • Operating range: 100 m under typical conditions
  • Audio frequency response: 50 - 15.000 Hz ± 3 dB
  • THD: <1%


  • Power Requirements: 12-18 DC nominal, 300 mA
  • Signal/noise ratio: more than 85 dB
  • Border upon channel rejection: more than 70 dB
  • Image & spurious rejection: more than 70 dB
  • Audio output level: 0-±300 mV
  • Receiving sensitivity: -105 dBm
  • Dimensions: 21,8 cm x 14,0 cm x 3,5 cm


  • Power Requirements: 2 x 1,5 V AA battery
  • Nominal current drain: less than 40 mA
  • Modulation type: FM
  • RF output: more than 10 dBm
  • Max deviation: ±30 kHz
  • Spurious emission: more than 55 dB
  • Dimensions: 24,5 cm x 3,9 cm
  • Weight: 0,18 kg


  • 1 x Receiver
  • 2 x Hand-held transmitter
  • 1 x Audio cable (6,3 mm Jack - 6,3 mm Jack) 1 m
  • 1 x Instruction manual