SEARCH Search LOG IN Log in 0 Bag

BOYA BY-WM4 Pro-K2 Dual Wireless Microphone System

💰 Tax Time is Here 💰
Shop our EOFY Sale. Prices as Marked.

Buy a Demo & Save

Buy an Open Box & Save

Interest Free Finance

  • 12 Month Warranty*
  • Click & Collect (Sydney)
  • Same Day Dispatch*
  • Friendly & Expert Advice
  • 100% Australian Stock
  • 7 Day Exchanges*

The BOYA BY-WM4 Pro-K2 is a Wireless Microphone System for video shooters. Capture clear wireless audio from two different sources, using two wireless transmitters and a lightweight dual channel wireless receiver. The system operates on the 2.4Ghz wireless band and offers an impressive line-of-sight range up to 60m and includes two omnidirectional lavalier microphones as well as a 3.5mm TRS and TRRS audio cable.

The BOYA WM4 Pro-K2 includes a RX4 Pro receiver unit with dual channel functionality that allows you to pickup the transmission from up to two separate wireless transmitters. Along with the receiver unit, the kit also includes two wireless bodypack transmitters that allow you to record dual subjects simultaneously.

Using a 2.4 Ghz wireless band, the compact BOYA system offers a 60m line-of-sight operational range that makes it a great option for video shooters who want to enjoy audio without the hassle of cables.

The included RX4 Pro Receiver has a built-in headphone port so you can monitor the audio being recorded, as well as a line-out port that can be used to send the audio with a DSLR camera or a mobile device.

Keeping the units powered and ready to go is easy because they are compatible with readily available AAA batteries. Each unit requires two batteries and features a LED that flashes blue when the unit is on and red when power is low.
Includes Hard Case, Shoe Mount & Dual Lav Mics.

The BOYA BY WM4 Pro K2 Wireless kit also includes a range of extra bits and pieces to help you get the most out of your audio gear. It has a hard case to store and transport the equipment as well as two clip-on omnidirectional lavalier microphones that can be discreetly attached to your talent.


  • Dual Channel Wireless Microphone System
  • Dual Wireless Transmitters
  • 2.4Ghz Digital Frequency Band
  • Up to 60m Line-of-sight Transmission Range
  • Built-in Headphone Monitor
  • Compatible with Cameras & Smartphones
  • Powered by AAA Batteries
  • Includes Hard Case, Shoe Mount Adapter, & Dual Lav Mics
  • Lightweight and compact for easy carrying 
  • Omnidirectional lavalier microphone 


RF Modulation:

GFSK (Gauss frequency Shift Keying)

Frequency band:

2.4GHz (2405-2478MHz)

Frequency response:



84dB or more


0.05% or less (32Ω,1 KHz,65mW output)

RF output level:


Earphone output level:


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


Transmitter: 45x70x35mm


Receiver: 47g


Transmitter: 47g

What's Included

2 x TX4 Pro Transmitter
1 x RX4 Pro Receiver
2 x Lavalier/Lapel Microphone
1 x 3.5mm to TRS Audio Cable
1 x 3.5mm to TRRS Audio Cable
1 x Shoe Mount Adaptor
2x Wind Screen
2 x Microphone Holder Clip

All deliveries within Australia are facilitated by Australia Post, Startrack or other courier services depending on the method you select during checkout and the dimensions/weight of the package. Generally, we dispatch within 24 hours of receiving your order unless otherwise stated. We have a quick turnaround time on postage and handling. Tracking numbers are issued via our automated e-mail system, however, if you do not receive your tracking number, please message our helpful staff and we'll attempt to provide as much information regarding your order as possible.

Please allow between 2-7 business days for standard deliveries to metro* areas and capital cities. For suburbs outside metro areas please allow an additional 2-5 business days for delivery. *Metro capital cities include: Sydney, Canberra, Wollongong, Gold Coast, Brisbane, Melbourne, Adelaide, Perth, Hobart or Darwin.

All products are covered by an Australian 12 month warranty. This can be either a manufacturer's warranty or a Hypop warranty depending on the product's origin. The warranty covers manufacturers faults, defects, parts and labour. This means that any fault that is deemed to be due to manufacturing will be covered by the warranty for any parts and labour required to fix it. In some cases when the cost of repair outweighs that of a replacement, a suitable replacement product may be offered.
These products are not covered by our 12 month warranty as these products are susceptible to regular wear-and-tear and can get damaged for a variety of reasons not deemed as a manufacturer's fault. If these products are faulty or DOA please notify us within 7 days for a replacement. PLEASE NOTE: *This excludes Light Bulbs, Cotton Muslin Backdrops, Paper Backdrop Rolls, Batteries, Consumable Products and Travel Carry Bags included with our kits. DEMO STOCK: All demo stock items are sold 'as-is' and come with a standard 12 month warranty. Stock will either be repaired, substituted with a similar demo item (subject to availability), you may opt for an exchange or a store credit may be offered. Please contact us for further detail.

Notice any mistakes on this page? Please inform us.

What Our Customers Think.

Welcome Discount of 5%