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MadBoy U-TUBE 20PD rechargeable wireless microphone system with switchable frequencies


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The MadBoy U-TUBE 20PD set consists of two high-quality microphones, a charger and a receiver with a LCD display. The microphones utilise the state-of-the-art circuit technology enabling extreme reliability of the microphones and charger. This is unprecedented in the microphones of this price category.

The microphones have a total of 34 switchable channels. If the channel you are using crackles, you can just change the channel and keep on rocking. U-TUBE 20PD uses the pan-European 823,000 MHz – 832,000 MHz frequency range. The frequency used by the microphones can be changed manually from the receiver.

The full-metal receiver is manufactured to meet professional demands. The volume control and tuner can be conveniently found on the front panel. The clear LCD display shows the channel number, frequency, signal strength and volume of the microphone. Antenna connectors, balanced XLR outputs for both channels and the unbalanced 6.3 mm output plug mixing the microphone channels are located on the receiver’s back panel.

The microphone sound is soft and clear. Due to the top-quality casings, the set is also suitable for professional use and can compete in quality with significantly more expensive brands. The LCD display of the microphones shows the channel, frequency and battery level. So, there is no longer a need for
you to guess whether there is power in the batteries. 

Both microphones get their power from two NiMH AA rechargeable batteries, which can be easily replaced. The microphones are protected by a circuit that prevents the annoying “pop” sound when switching the microphone on and off. The charger can charge both microphones at the same time. Light indicates the charging status.

Rack mount hardware for the receiver for a 19” rack is available as an accessory.


  • Two wireless rechargeable PLL mics, charger and receiver
  • Uses the pan-European 823.000 MHz - 832.000 MHz frequency range
  • 17 switchable channels / microphone
  • Operating range approx 50 meters, under normal conditions
  • Microphones operate on two rechargeable AA-size batteries
  • Strong metal grill protects the cartridge and reduce breathing sounds and wind noise
  • LCD on microphone shows currently used frequency and battery level
  • 2 balanced outputs (XLR) and 1 unbalanced mixed output (¼") on receiver
  • Own antenna, volume and frequency control for both channels
  • LCD on receiver shows used frequency, used channel and RF-signal
  • Charger unit can charge 2 mics at the same time. Light indicates charging status


  • Outputs: 2 x XLR and 1 x 6,3 jack
  • Power adapter: 12 V, 1 A
  • Display: LCD
  • Antenna connector: 2 x SP-BNC female
  • Dimensions: 4,5 cm (H) x 21 cm (W) x 13,7 cm (D)
  • Weight: 0,89 kg

Hand-held transmitter

  • Power consumption : 2 x 1,2 V 2000 mAh NiMH AA-rechargeable battery
  • Battery life: approx. 5-7 h (battery life depends on battery age, manufacturer and maximum capacity)
  • Modulation: FM
  • Type: Dynamic Microphone
  • RF output: 10 mW
  • Frequency response: 40 Hz - 14,000 Hz
  • Dimensions: 27,1 cm x 5,1 cm
  • Weight: 0,3 kg


  • Power adapter: 12 V, 1 A
  • Dimensions: 7 cm (H) x 15,5 cm (W) x 7 cm (D)
  • Weight: 0,3 kg


  • 1 x Receiver
  • 2 x Hand-held Rechargeable Microphone
  • 1 x Charger
  • 2 x Antenna
  • 4 x AA-batteries (NIHM, 1.2 V, 2000 mAH)
  • 1 x 6,3 jack cable
  • 2 x Power adapter DC 12 V / 1 A
  • 1 x Instruction manual