BOYA by-WM4 PRO-K4 Wireless Microphone


• 2.4GHz digital transmission. • Compatible with iPhone, iPad and iPod Touch and other IOS devices. • Idea for two person vlog, dialog, interview, mobile journalism and more. • Dual channel wireless microphone system. • Captures and delivers tow high-quality sounds simultaneously. • Up to 60m (197ft) operation range without obstacles. • Compact size and lightweight receiver. • Apple MFI certified Lightning connector. • Switchable stereo/mono mode. • 3.5mm headphone monitoring output. • Line-in input jack on transmitter.



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The BOYA BY-WM4 Pro K4 is a 2.4GHz dual channel wireless microphone system consisting of a compact dual channel receiver and two transmitters, which is ideal for two person vlog, dialog, interview, mobile journalism and much more.
Dual-channel Receiver Delivering Two Sound Sources Simultaneously
Designed with a dual channel wireless receiver, it delivers two high-quality sound sources simultaneously to your iOS recording devices.
Compact and Lightweight Receiver Compatible with iOS Devices
The receiver is pretty compact and lightweight that makes it more convenient to connect it to your iOS devices, such as iPhone, iPad and iPod Touch via an Apple MFI certified Lightning connector.
60m (197ft) Operation Range
Featuring the 2.4GHz digital transmission technology, it provides you an operation range up to 60m (197ft) without obstacles, which is quite enough for most applications.
Additional Functions Simplifying Post-processing
A line-in input jack on transmitter allows it to accept audio from other line-level devices. Plus there is a stereo/mono switch on receiver makes it delivers each channel separately or combine them, and a 3.5mm headphone output gives you the real-time monitoring experience. 

Product description
RF Modulation: GFSK (Gauss Frequency Shift Keying)
Frequency band: 2.4G (2405-2478MHz)
Frequency response: 35Hz-14KHz±3dB
Signal/Noise: 84dB or more
Distortion: 0.05% or less (32ohm, 1 KHz, 65 mW output)
FR output level: 3mW
Earphone output level: 32hom, 65mW
Reception sensitivity: -90dB+/- 3dB / 0dB=1V/Pa, 1KHz
Audio input connector: 3.5mm mini jack
Operation range: 60m (197 ft)(without obstacle)
Transmitter Power requirement: 2 * AAA battery(not included)
Consumption power: Transmitter: 3V/70mA
                   Receiver: 3V/70mA
Transmitter Size: 4.5 * 7 * 3.5cm/ 1.8 * 2.8 * 1.4in
Transmitter Weight: 47g/ 1.7oz(without battery)
Receiver Weight: 12g/ 0.4oz

The smartphones, phone holder and tripod showed in the picture are not included.

Package List:
2 * Transmitters
1 * Receiver
1 * Lapel Microphone
1 * Wind Screen
1 * Microphone Holder Clip



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