BOYA BY-WM4 Pro K2 Dual-Channel Digital Wireless Microphone

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  • Regular price $149.00
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The BOYA BY-WM4 Pro K2 Dual-Channel Digital Wireless Microphone is designed for videographers on a limited budget and video hobbyists, BY-WM4 PRO system is a new generation 2.4 GHz wireless microphone, dual-Channel for capturing audio with dual subjects to your smartphones, tablets, DSLR cameras, consumer camcorders, PCs etc.


  • Dual-Channel Wireless Receiver
  • Digital 2.4 GHz Frequency Band
  • Super-clear recording sound
  • Compatible with most of Audio / Video equipments, such as Smartphone, tablet, DSLR, small recorder, Audio Recorder, PC etc.
  • Headphone connector for real-time monitor
  • Lightweight and compact for easy carrying
  • Easy to use
  • Omnidirectional lavalier microphone
  • Hard case included
  • Standard camera shoe mount and clip included
  • Up to 60m (197ft) operation range (without obstacle)
  • Power supplied by two AAA batteries for transmitter and receiver



 Brand  Boya
 Model  BY-WM4 Pro K2
 RF Modulation  GFSK (Gauss frequency Shift Keying)
 Frequency band  2.4GHz (2405-2478MHz)
 Frequency response  35Hz-14KHz±3dB
 Signal/Noise  84dB or more
 Distortion  0.05% or less (32Ω,1 KHz,65mW output)
 RF output level  3mW
 Earphone output level  32Ω,65mW
 Reception sensitivity  -90dB +/- 3dB / 0dB=1V/Pa, 1kHz
 Audio input connector  3.5mm mini jack
 Operation range  60m (197ft) (without obstacle)
 Power requirements  3V DC (Two AAA size batteries)
 Consumption power
  •  Transmitter: 3V/70mA
  •  Receiver:3V/70mA
  • Transmitter: 45 x 70 x 35 mm 
  • Receiver: 45 x 70 x 35 mm 
  • Transmitter: 47g 
  • Receiver: 47g