BOYA BY-WM4 PRO-K4 Two-Person Digital Wireless Omni Lavalier Microphone System for Lightning iOS Devices (2.4 GHz)

For Video, Vlogging, YouTube, Instagram

2 x Omni Lavalier Mics

2 x Bodypack Transmitters

Compact Dual-Channel Receiver

The Boya BY-WM4 PRO-K4 is a compact, entry-level wireless lavalier microphone system offering an easy-to-use, cost-effective, and all-inclusive solution for recording two subjects to your mobile device. The system delivers improved sound quality over the built-in mics on mobile devices to supply clear, intelligible speech for journalists, YouTube/Instagram creators, TikTok personalities, vloggers, and more.

The package includes two omnidirectional lavalier mics and two bodypack transmitters with belt clips that allow your subjects to move around hands-free in front of the camera for interviews, demonstrations, presentations, and performances. The ultracompact, dual-channel receiver offers a 200' line-of-sight maximum operating range and mounts to the Lightning connection on your iPhone or compatible mobile device, which also provides it with power.

The 3.5mm jack on the receiver lets you plug in headphones for monitoring while you're working on set. The transmitters are powered by two AAA batteries for up to 11.5 hours, and they are pre-paired with the receiver at the factory�just power up, plug the receiver into your phone, and you're ready to go.

Easy-to-Use System with Two Lavalier Mics & Two Bodypack Transmitters

• The clip-on lavalier microphones feature an omnidirectional pickup pattern that helps to deliver consistent audio levels even when the subject turns away form the mic.
• The mics plug into the lightweight bodypack transmitters, which run on two AAA batteries.
• An LED indicator on the unit shows power and low-battery level.
• Simply power up the receiver and transmitter to access reliable wireless audio functionality in an instant.

Ultracompact, Dual-Channel Receiver

• The lightweight, ultracompact receiver plugs directly into the Lightning port of your iPhone or iOS device. 
• The receiver's input gain can be adjusted to accommodate speakers at different volume levels.
• The receiver features a 3.5mm headphone jack for monitoring.

Wireless Transmission	Digital 2.4 GHz
Included Transmitters	2 x Bodypack with Microphone
Diversity	Non-Diversity
RF Frequency Band	2405 to 2478 MHz
RF Channel Scanning	Auto-Scan
Max Operating Range	196.9' / 60 m (Line of Sight)
Max Systems per Setup	2
Encryption	None
Modulation	GFSK

Form Factor	Plug-In / USB Stick
Mounting Options	Plug-In
Number of Audio Channels	2
Audio I/O	1 x 1/8" / 3.5 mm TRS Female Balanced Headphone Output
Frequency Response	35 Hz to 14 kHz
Word Clock I/O	None
USB/Lightning Connectivity	Lightning
Power Requirements	Bus Power (Lightning)
Display & Indicators	LED (Power, Sync)
Dimensions	3.2 x 1.2 x 0.5" / 82 x 30.7 x 12 mm
Weight	0.4 oz / 12 g

Form Factor	Bodypack with Microphone
RF Output Power	3 mW
Audio I/O	1 x 1/8" / 3.5 mm 3-Pin Female Input
Included Cable Connector	1/8" / 3.5 mm TRS
Auto-Level Control	No
Approximate RF Sensitivity	-90 dB
Power Requirements	Battery
Battery Type	2 x AAA
Approx. Battery Life	11.5 Hours
USB/Lightning Connectivity	None
Display & Indicators	LED (Battery Status, Power, Sync)
Dimensions	1.8 x 2.8 x 1.4" / 45 x 70 x 35 mm
Weight	1.7 oz / 47 g

Form Factor	Lavalier
Sound Field	Mono
Polar Pattern	Omnidirectional
SNR	84 dB
THD	0.05%
Output Connectors	1 x 1/8" / 3.5 mm 3-Pin Male

Package Weight	0.99 lb
Box Dimensions (LxWxH)	8.6 x 6.8 x 2.2"

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