Boya BY-WM4 PRO K1 Dual-Channel Digital Wireless Microphone System

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Key Features

  • Digital 2.4 GHz Frequency Band
  • Super-clear recording sound
  • Compatible with smartphones, DSLR cameras, consumer camcorders, PCs 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 (197') operation range (without obstacle)
  • Power supplied by two AAA batteries for transmitter and receiver

If the product is showing in stock, we'll ship it out the same day if the order is placed before 2pm.

The estimated shipping timeframe is based on the assumption that the supplier has this item in stock. We'll contact you to communicate the actual shipping timeframe after the order is placed.

If you need the item before a certain date, please contact us to confirm before ordering.

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Designed for videographers on a limited budget and video hobbyists, BY-WM4 PRO is a new generation 2.4 GHz wireless microphone, with dual-Channel for receiver, easy-to-use and compact design, it's ideal for interviews, run-and-gun video shoots, vlog production and more.

Wide Compatibility
With both TRS cable and TRRS output cable included, it can be used for Smartphones, Tablets, DSLR camera, camcorder, audio recorder computer and more.

Excellent for performance
With the transmitter and receiver each weighing only 47g (1.7 oz) and measuring 45 x 70 x 35mm (1.8 x 2.8 x 1.4"), the system still maintains the high signal-to-noise ratio above 84dB and low distortion rate below 0.05%.

High-quality transmission
The system works at distances of Up to 60m (197') operation range (line of sight), operating on the 2.4 GHz frequency band, offering flexibility and giving you a low-latency audio transmission with no video sync issues.

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BOYA BY-WM4 PRO K1 Specifications

Smartphones, DSLR cameras, consumer camcorders, PCs etc
RF Modulation
GFSK (Gauss frequency Shift Keying)
Frequency band
2.4GHz (2405-2478MHz)
Frequency response
35Hz-14KHz +/-3dB
84dB or more
0.05% or less (32 Ohms,1 KHz,65mW output)
RF output level
Earphone output level
32 Ohms,65mW
Reception sensitivity
-90dB +/- 3dB / 0dB=1V/Pa, 1kHz
Audio input connector
3.5mm mini jack
Operation range
60m (196.85') (without obstacle)
Power requirements
3V DC (Two AAA size batteries)
Consumption power
Transmitter: 3V/70mA
Receiver: 3V/70mA
Receiver: 45 x 70 x 35mm (1.77 x 2.76 x 1.38")
Transmitter: 45 x 70 x 35mm (1.77 x 2.76 x 1.38")
Receiver: 47g (1.66 oz)
Transmitter: 47g (1.66 oz)
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  • BOYA TX4 Pro Body Pack Transmitter
  • RX4 Pro Receiver
  • Lavalier/Lapel Microphone
  • 3.5mm to TRS Audio Output Cable
  • 3.5mm to TRRS Audio Output Cable
  • Shoe Mount Adapter
  • Windscreen
  • Microphone Holder Clip
  • Hard Case
  • BOYA Warranty
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  • Barcode: 43853
  • Supplier Code: BY-WM4 PRO-K1
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