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 factoryjust 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.
BOYA BY-WM4 PRO-K4 Specs
System
| Wireless Technology | 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 Transmitters per Band | 2 |
| Encryption | None |
| Modulation | GFSK |
Receiver
| Receiver Type | 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 |
Transmitter
| Transmitter Type | 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 |
Microphone
| Microphone Type | Lavalier |
| Sound Field | Mono |
| Polar Pattern | Omnidirectional |
| SNR | 84 dB |
| THD | 0.05% |
| Output | 1 x 1/8" / 3.5 mm 3-Pin Male |
Packaging Info
| Package Weight | 0.99 lb |
| Box Dimensions (LxWxH) | 8.6 x 6.8 x 2.2" |
In the Box
- BOYA BY-WM4 PRO-K4 Two-Person Digital Wireless Omni Lavalier Microphone System for Lightning iOS Devices (2.4 GHz)
- BY-WM4 PRO RXD Receiver
- 2 x TX4 Pro Bodypack Transmitters
- 2 x Omnidirectional Lavalier Microphones
- 2 x Alligator-Style Lavalier Mic Clips
- 2 x Foam Windscreens
- Pairing Pin
- 2-Year Warranty
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