1. Introduction
The BOYA BY-W4 is an ultracompact 2.4GHz four-channel wireless microphone system designed for capturing high-quality audio with cameras, camcorders, DSLRs, and computers. This system is ideal for video recording, vlogging, and live streaming, offering flexibility and ease of use.
It features a wireless system that supports up to four microphones simultaneously, making it suitable for group presentations, conferences, or interviews. The system includes a high-quality built-in omnidirectional microphone with an impressive sensitivity of -42dB, ensuring clear and detailed audio capture.
The BY-W4 receiver allows for real-time audio monitoring through a 3.5mm TRRS male to dual TRRS female cable. Its compact and lightweight design (less than 0.4oz per unit) ensures portability and convenience for various recording environments.
Video: An overview of the BOYA BY-W4 Wireless Lavalier Microphones & Systems, demonstrating its features and applications.
2. What's in the Box
The BOYA BY-W4 Wireless Lavalier Microphone System package includes the following components:
- BY-W4 TX Transmitter (x4)
- BY-W4 RX Receiver (x1)
- 3.5mm TRRS to TRS Output Cable for Cameras (x1)
- 3.5mm TRRS to TRRS Output Cable for Smartphones (x1)
- 3.5mm TRRS Male to Dual TRRS Female Cable (x1)
- USB-C Cable (x3)
- Carrying Pouch (x1)
- Windshield Modifiers (x4)
Image: All components included in the BOYA BY-W4 package.
3. Product Features
- Four-Channel Wireless System: Allows simultaneous use of up to four transmitters with one receiver, ideal for multi-person recordings.
- Ultracompact & Lightweight: Each unit weighs less than 0.4oz, ensuring portability and discreet placement.
- Omnidirectional Microphones: Built-in microphones capture sound from all directions with -42dB sensitivity for clear, detailed audio.
- Real-time Audio Monitoring: The receiver features a 3.5mm TRRS output cable for live sound monitoring during recording.
- Wide Compatibility: Includes 3.5mm TRRS to TRS and TRRS to TRRS output cables for seamless connection with cameras, smartphones, and computers.
- Long Battery Life: Up to 7 hours of runtime on a single charge, with convenient USB-C charging.
- Wireless Transmission Range: Offers a transmission distance of up to 98 feet (30 meters) without obstacles.
- Mute Function: Transmitters include a mute button for temporary audio cutoff.
Image: The BOYA BY-W4 system components, highlighting its compact design.
Video: A detailed look at the features of the BOYA BY-W4 Wireless Lavalier Microphone Systems.
4. Setup Guide
4.1 Initial Charging
Before first use, fully charge all BY-W4 TX Transmitters and the BY-W4 RX Receiver using the provided USB-C cables. The indicator lights will show charging status.
Image: BOYA BY-W4 transmitters and receiver connected to USB-C charging cables.
4.2 Pairing Transmitters and Receiver
- Step 1: Turn on Transmitters. Power on the desired number of BY-W4 TX Transmitters (up to four). The indicator lights on the transmitters will blink, indicating they are ready to pair.
- Step 2: Turn on Receiver. Power on the BY-W4 RX Receiver. The receiver will automatically search for and connect to the active transmitters.
- Step 3: Confirm Pairing. Once successfully paired, the indicator lights on both the transmitters and the receiver will remain steadily lit.
Image: Visual guide for connecting the BY-W4 receiver to a smartphone and pairing with transmitters.
4.3 Connecting to Recording Device
- For Cameras/DSLRs: Use the 3.5mm TRRS to TRS Output Cable. Connect the TRRS end to the receiver's output port and the TRS end to your camera's microphone input.
- For Smartphones: Use the 3.5mm TRRS to TRRS Output Cable. Connect one end to the receiver's output port and the other end to your smartphone's 3.5mm jack. (Note: Some smartphones may require an additional adapter, not included).
- For Computers: Use the appropriate 3.5mm cable (TRRS to TRRS for combo jacks, or TRRS to TRS with a splitter for separate mic/headphone jacks).
Image: The BY-W4 receiver mounted on a camera, demonstrating wireless transmission.
5. Operating Instructions
5.1 Wearing the Transmitters
Clip the BY-W4 TX Transmitters securely onto the clothing of each speaker, ensuring the microphone is positioned to capture clear audio. The ultracompact design allows for discreet placement.
Image: Multiple users wearing the compact BY-W4 transmitters for group recording.
5.2 Mute Function
Each transmitter features a dedicated mute button. Press the mute button once to temporarily mute the microphone. Press it again to unmute. The indicator light will change to reflect the mute status.
5.3 Gain Adjustment
The transmitters include a volume rocker to adjust the gain (input level) of the microphone. Adjust the gain as needed to prevent audio clipping or ensure sufficient volume.
5.4 Real-time Monitoring
Connect headphones to the 3.5mm TRRS male to dual TRRS female cable (connected to the receiver) to monitor audio in real-time during recording. This ensures optimal sound quality and allows for immediate adjustments.
5.5 Dual Channel Mode (BY-W4 RX-to-two TX pattern)
The BY-W4 system supports different patterns for recording. For dual-channel use (one receiver to two transmitters), ensure the correct pairing pattern is selected. Refer to the user manual for detailed instructions on switching patterns.
Image: Illustration of the BY-W4's ability to switch between one-to-four and one-to-two transmitter patterns.
6. Maintenance
- Keep the devices clean using a soft, dry cloth.
- Avoid exposing the units to extreme temperatures, humidity, or direct sunlight.
- Store the system in the provided carrying pouch when not in use to protect it from dust and damage.
- Do not attempt to disassemble or repair the units yourself, as this will void the warranty.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No audio output/recording. | Incorrect cable connection, low battery, mic muted, pairing issue. | Ensure correct cable (TRRS to TRS/TRRS) is used and fully inserted. Check battery levels and charge if low. Verify mic is not muted. Re-pair transmitters and receiver. |
| Receiver not turning on/charging. | Faulty cable/charger, unit malfunction. | Try a different USB-C cable and power source. If issue persists, contact customer support. |
| Audio cutting in/out or static. | Interference, exceeding range, obstacles, low battery. | Reduce distance between units. Avoid physical obstacles. Check for strong Wi-Fi or other 2.4GHz interference. Ensure units are fully charged. |
| Poor sound quality (e.g., muffled, too quiet). | Incorrect mic placement, gain settings, wind noise. | Ensure mic is properly clipped and facing the sound source. Adjust gain using the volume rocker. Use windshield modifiers in windy conditions. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | BOYA BY-W4 |
| Connectivity Technology | 2.4GHz |
| Microphone Form Factor | Lavalier |
| Polar Pattern | Omnidirectional |
| Audio Sensitivity | -42 Decibels |
| Frequency Response | 50Hz-16KHz |
| Signal-to-Noise Ratio | 78.00 |
| Power Source | Battery Powered (1 Lithium Ion battery required per unit) |
| Battery Life (Runtime) | Up to 7 hours |
| Charging Port | USB-C |
| Transmission Distance | Up to 98ft (30m) without obstacles |
| Item Weight | 12 Grams (per unit) |
| Compatible Devices | Camcorder, Camera, Smartphone, Computer |
9. Warranty & Support
The BOYA BY-W4 Wireless Lavalier Microphone System comes with a 2-year manufacturer warranty.
For technical support, troubleshooting assistance, or warranty claims, please contact BOYA Official customer service. Refer to the contact information provided in your product packaging or visit the official BOYA website.
Seller: BOYA Official
Return Policy: 30-day refund/replacement policy from the date of purchase.