Lavalier Microphone BOYA BY-WM4

Name: Lavalier Microphone BOYA BY-WM4 BY-WM4 Pro-K3
Brand: Boya
SKU: 3491400
Price: 25.49 EUR
Availability: InStock

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Short description

The BOYA BY-WM4 is a high-quality lavalier microphone featuring a condenser transducer for clear audio capture. It operates wirelessly with a frequency range of 2405 - 2478 MHz. The system includes a rack mount receiver and a bodypack transmitter, ensuring flexibility and ease of use. With a maximum sound pressure level of 76 dB and low total harmonic distortion of 0.1%, it delivers excellent sound quality. The battery life lasts up to 3 hours, powered by AA batteries, making it ideal for interviews, presentations, and video production.

Available at price 25.49 €: 6 pcs.

Total available for order: 18 pcs.

Warranty: 2 Years

SKU: 3491400

Manufacturer: Boya

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Deliver the order:

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to the Customer Service Center at Kengaraga 2b, Riga

02.07.2026 {{selectedOffer.officeDeliveryString}}

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Customer service center

2b. Kengaraga str., Riga, Latvia, LV-1063

02.07.2026 {{selectedOffer.officeDeliveryString}}

free

Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!

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From 4.99 € (Weight: 0.26 kg)

Parcel couriers

Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts nodaļa

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From 1.99 €

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Payment Methods:

Bank transfer, Bank cards on-line, Apple Pay, Google Pay

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Product information

Description

The BOYA BY-WM4 lavalier microphone kit is a wireless condenser system designed for clear audio capture in interviews, presentations, and video production. The kit includes an omnidirectional lavalier microphone, a bodypack transmitter, a receiver, a windscreen, and a hard carrying case. It operates in the 2405–2478 MHz band, offers real-time monitoring and is compatible with smartphones, tablets, DSLR cameras, camcorders, audio recorders and PCs.

Advantages

The system provides high sound sensitivity and low total harmonic distortion (0.1%), enabling accurate voice reproduction. A maximum sound pressure level of 76 dB and a condenser transducer ensure clear capture of spoken word. The kit’s universal connections and included accessories make it convenient for on-the-go recording, while the hard carrying case protects components during transport. Battery-powered operation (AA batteries) offers up to approximately 3 hours of runtime, allowing use in field recordings without direct power.

Suitable for

Interview recording for journalism and reporting
Presentations and lectures
Vlogging and on-camera voice capture with DSLR or camcorder
Mobile content creation with smartphones and tablets
Audio recording with portable recorders and PCs

Key specifications

Model: BOYA BY-WM4 (MPN: BY-WM4 Pro-K3)
Transducer: Condenser lavalier (omnidirectional)
Operating frequency: 2405–2478 MHz
Maximum sound pressure level: 76 dB
Total harmonic distortion: 0.1%
Power: AA batteries, up to ~3 hours battery life
Includes: Lavalier mic, transmitter, receiver, windscreen, hard carrying case
Compatibility: Smartphone, tablet, DSLR, camcorder, audio recorder, PC
EAN: 6971008025699

How to use

Attach the lavalier microphone to the speaker’s clothing using the clip, position the microphone 15–20 cm from the mouth for balanced capture, and fit the windscreen if recording outdoors. Insert AA batteries into the transmitter and receiver, power both units on, and ensure they are set to the same channel within the 2405–2478 MHz range. Connect the receiver output to your recording device (smartphone, camera, recorder or PC) using the appropriate cable or adapter, and enable real-time monitoring to check levels. Perform a quick sound check and adjust placement or input gain on your device as needed.

Usage recommendations

For best results, avoid placing the microphone directly against fabric that can rub or create noise; use the supplied windscreen in windy conditions and verify battery charge before sessions. Keep the transmitter and receiver within recommended line-of-sight distances and minimize interference by moving away from strong Wi‑Fi or other 2.4 GHz sources if audio dropouts occur.

All features

Antenna type:: Fixed
Wireless range:: 15 m
Microphone connectivity:: RF wireless
Transmitter dimensions (WxDxH):: 60 x 86 x 28
Transmitter weight:: 136 g
Receiver type:: Rack mount receiver
Transmitter type:: Bodypack transmitter
Microphone type:: Lavalier microphone
3.5 mm (1/8-inch) in:: Yes
Radio Frequency (RF) range:: 2405 - 2478
Microphone frequency response:: 35 - 14000
Camera adapter included:: Yes
Microphone clip:: Yes
Microphone transducer principle:: Condenser microphone

Weight & dimensions

Receiver dimensions (WxDxH):: 60 x 86 x 41
Receiver weight:: 152 g

Power

Battery type:: AA
Number of batteries supported:: 2
Battery life (max):: 3 h

Packaging content

Cables included:: Audio (3.5mm)
Batteries included:: No

Other features

Sound pressure level (max):: 76 dB

Receiver

Signal-to-Noise Ratio (SNR):: -85 dB

Amplifier

Total Harmonic Distortion (THD):: 0.1 %

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Warehouse	Stock	Delivery to the store	Store Price
EU57	6	02.07.2026	25.49 € Best price
BT34	12	26.06.2026 Best delivery	106.99 €

25.49 €

Stock: 6

Delivery Date: 02.07.2026

Warehouse: EU57

106.99 €

Stock: 12

Delivery Date: 26.06.2026 Best delivery

Warehouse: BT34

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Customer questions

FAQ

How much does the Lavalier Microphone BOYA BY-WM4 cost, and is it available for purchase?

The price is 25.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 18 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 02.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All Boya products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Boya service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

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