BOYA BY-WM4 Pro K2 Portable 2.4G Wireless Microphone System(Dual Transmitters + One Receiver) with Hard Case for DSLR Camera Camcorder Smartphone PC Tablet Sound Audio Recording Interview,


Delivery with in 7-10 business days.

Available on backorder





Digital Wireless Microphone

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.

It’s a compact and extraordinarily easy-to-use wireless microphone system for recording crisp and clear speech, and interviews. Omnidirectional lavalier mic included is suitable for performers who wish to exhibit freedom of movement in their visual recordings.

Additionally, the system offers a up to 60m (197ft) line-of-sight operation range.

BY-WM4 Pro-K2 consists of one compact body-pack transmitter (TX4 Pro), 2 portable receiver(RX4 Pro), 2 Lavalier/lapel microphone, 2 omni-directional lavalier microphone, 2 3.5mm TRRS audio cable and 2 3.5mm TRS audio cable, which provides immediate out-of-the-box operatability for anyone, making it ideal for video, podcast, and mobile journalism applications.

The receiver is built with 3.5mm mic and 3.5mm headphone output jacks. The body-pack transmitter includes a MIC jack and LINE IN jack.

  • For mobile Journalists, Vloggers, YouTubers, Padcasters and more.
  • Compatible with most of Audio/Video equipments, such as Smartphone, tablet, DSLR, small recorder, Audio Recorder, PC etc.
  • Dual-channel receiver allows working two transmitters at the same time.
  • Compact and lightweight bodypack transmitter and receiver
  • Electret condenser, omnidirectional lavalier microphone
  • With simple gain buttons and a power/pair button, the system is comfortably easy to use.

BY-WM4 Pro-K2

Digital Wireless Microphone

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: 45x70x35mm (1.8*2.8*1.4 inches)

Transmitter: 45x70x35mm (1.8*2.8*1.4 inches)


Receiver: 47g (1.7 oz)

Transmitter: 47g (1.7 oz

Product Highlights

  • Dual-Channel Wireless Receiver
  • Digital 2.4 GHz Frequency Brand
  • Super-clear recording sound
  • Compatible with smartphones,DSLR cameras consumer camcorders,PCs etc.
  • Lightweight and compact for easy carrying
  • Omnidirectional lavalier microphone
  • Standard camera shoe mount and clip included
  • Power supplied by two AAA batteries for transmitter and receiver
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