1. Introduction
The 7RYMS iRay DW40 is a four-channel wireless lavalier microphone system designed for high-quality audio recording. It includes four transmitters and one receiver, allowing simultaneous audio capture from up to four individuals. This system features AI denoising, real-time monitoring, 48kHz/24bit audio recording, and versatile output options for compatibility with various devices.

2. Packing List
Please verify that all items are present in your package:
- Transmitter (TX) x 4
- Receiver (RX) x 1
- Charging Case x 1
- 2-in-1 Charging/Audio Output Cable x 1
- 3.5mm TRS-TRS Audio Cable x 1
- 3.5mm TRS-TRRS Audio Cable x 1
- Wind Muff x 4
- Carrying Pouch x 1
- User Manual x 1

3. Component Overview
The iRay DW40 system consists of compact transmitters and a receiver, designed for portability and ease of use.
3.1. Transmitters (TX)
Each transmitter is a miniature unit equipped with an omnidirectional microphone, a clip for attachment, and a USB-C port for charging. It features a power button, AI denoise button, and volume adjustment controls.
3.2. Receiver (RX)
The receiver unit connects to your recording device. It includes a USB-C audio output port, a 3.5mm TRS audio output port, and a 3.5mm TRRS headphone monitor port for real-time audio monitoring.
3.3. Charging Case
The multi-functional charging case stores and charges all four transmitters and the receiver. It also facilitates one-click pairing of the units.

4. Setup Guide
4.1. Initial Charging
Before first use, fully charge the transmitters and receiver using the provided charging case and USB-C cable. Place all units into the charging case; charging indicators will illuminate.
4.2. Pairing
The transmitters and receiver are designed for one-click pairing when placed in the charging case. Ensure all units are in the case, close it, and then open it. They should automatically pair. If manual pairing is needed, refer to the detailed instructions in the included user manual.
4.3. Connecting to a Recording Device
Connect the receiver to your camera, smartphone, or computer using the appropriate cable:
- For Cameras: Use the 3.5mm TRS-TRS audio cable.
- For Smartphones/Tablets (with 3.5mm jack): Use the 3.5mm TRS-TRRS audio cable.
- For USB-C Devices (Smartphones, Laptops, PCs): Use the 2-in-1 Charging/Audio Output Cable or a dedicated USB-C to USB-C cable (not included for all devices).

4.4. Wearing the Transmitters
Attach the transmitters to the speaker's clothing using the integrated clip. For optimal audio quality and to minimize wind noise, attach the included wind muffs over the transmitter's microphone when recording outdoors or in windy conditions.

5. Operation
5.1. Power On/Off
Press and hold the power button on each transmitter and the receiver to turn them on or off.
5.2. AI Denoise Function
Each transmitter is equipped with an AI denoising feature. Short press the dedicated AI denoise button on the transmitter to activate or deactivate background noise reduction. This helps filter out environmental noise for clearer audio.

5.3. Real-time Monitoring
Connect headphones to the 3.5mm TRRS monitor port on the receiver to listen to the audio in real-time. This allows you to adjust recording conditions and ensure optimal sound quality during your session.

5.4. Volume Adjustment
Each transmitter features four-level volume adjustment. Use the volume controls on the side of the transmitter to set the desired input level.

5.5. Muting Function
Short press the mute button on the transmitter to instantly mute or unmute the microphone. This is useful for temporary interruptions during recording.

5.6. Mono/Stereo Output Modes
The receiver supports both mono and stereo output modes. In mono mode, audio from all four channels is mixed into a single output. In stereo mode, channels A/C are output to the left channel and B/D to the right channel, providing separate audio streams for post-production flexibility.

5.7. 48kHz/24bit Audio Recording
The system records audio at a high resolution of 48kHz/24bit, ensuring clear, natural, and broadcast-quality sound for your recordings.

5.8. Wireless Range
The iRay DW40 system offers a wireless transmission range of up to 656 feet (200 meters) in open, unobstructed environments, with low latency of less than 20ms.

6. Charging and Battery Life
The DW40 system is designed for extended use with efficient charging capabilities.
- Single Charge: Each transmitter provides approximately 5 hours of operation on a single full charge.
- With Charging Case: When used with the charging case, the total battery life for the system can extend up to 12.5 hours.
- Charging While Recording: All transmitters and the receiver are equipped with universal USB-C charging ports, allowing them to be charged even while actively recording, ensuring uninterrupted power for long sessions.


7. Device Compatibility
The 7RYMS iRay DW40 offers broad compatibility with various recording devices through its digital (USB-C) and analog (3.5mm) output modes.
- Cameras/Camcorders: Compatible via 3.5mm TRS-TRS audio cable.
- Smartphones (Android & iPhone): Compatible with USB-C phones (e.g., Samsung S24/S23/22/21/20/10, Pixel, OnePlus) via USB-C cable. For iPhones with Lightning ports, an adapter cable (not included) is required. For phones with 3.5mm jacks, use the 3.5mm TRS-TRRS cable.
- Laptops/MacBooks/Tablets: Compatible via USB-C or appropriate adapter cables.
- PC Computers: Compatible via USB-C or 3.5mm connection.

8. Technical Specifications
| Feature | Specification |
|---|---|
| Brand | 7RYMS |
| Model Name | iRay DW40 |
| Microphone Form Factor | Lavalier |
| Polar Pattern | Omnidirectional |
| Connectivity Technology | Wireless 2.4Ghz |
| Connector Type | 3.5 mm Jack, USB Type-C |
| Number of Channels | 4 |
| Audio Sensitivity | 100 Decibels |
| Signal-to-Noise Ratio | 70 dB |
| Frequency Response | 80 Hz - 20 kHz |
| Power Source | Battery Powered (Lithium Ion) |
| Operating Time (Single Charge) | Up to 5 hours |
| Operating Time (with Charging Case) | Up to 12.5 hours |
| Wireless Range | 656 feet (200 meters) |
| Item Weight | 0.28 Kilograms (9.9 ounces) |
| Product Dimensions (L x W x H) | 6.3 x 1.57 x 7.09 inches |
| Material | Metal, Plastic |
| Special Features | Four-channel, AI Denoise, 48kHz/24bit Recording, Real-time Monitoring, Muting, M/S Switch, Volume Control |
9. Maintenance
To ensure the longevity and optimal performance of your 7RYMS iRay DW40 system, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the transmitters, receiver, and charging case. Avoid using liquid cleaners or solvents.
- Storage: Store the system in its charging case when not in use to protect it from dust and physical damage. Store in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: For long-term storage, ensure the batteries are charged to approximately 50-70% to preserve battery health. Recharge periodically if stored for extended periods.
- Cable Care: Handle cables gently to prevent damage to connectors and wiring.
10. Troubleshooting
If you encounter issues with your 7RYMS iRay DW40 system, refer to the following common problems and solutions:
- No Sound Output:
- Ensure all transmitters and the receiver are powered on.
- Verify that the transmitters are successfully paired with the receiver.
- Check all cable connections between the receiver and your recording device. Ensure the correct cable (TRS for cameras, TRRS for smartphones, USB-C for digital) is used and securely connected.
- Confirm the recording device's input settings are correctly configured to recognize the external microphone.
- Check the volume levels on both the transmitters and your recording device.
- Poor Audio Quality / Background Noise:
- Activate the AI Denoise function on the transmitters.
- Ensure wind muffs are used in windy environments.
- Check for obstructions or excessive distance between the transmitters and receiver.
- Adjust the transmitter's volume to avoid clipping or low signal.
- Minimize interference from other 2.4GHz wireless devices.
- Transmitters Not Charging:
- Ensure the charging case is connected to a power source and the charging cable is functional.
- Verify that the transmitters are correctly seated in the charging case.
- Check the charging indicators on the case and transmitters.
- Intermittent Connection:
- Reduce the distance between the transmitters and receiver.
- Ensure there are no major physical obstructions (e.g., thick walls, large metal objects) between the units.
- Avoid environments with high 2.4GHz wireless traffic.
11. Warranty and Support
For warranty information and technical support, please refer to the warranty card included in your package or visit the official 7RYMS website. You can also contact 7RYMS customer service directly for assistance with product issues or inquiries.
Visit the 7RYMS Store: 7RYMS Official Store





