Nearstream AWM20T Wireless Lavalier Microphone System User Manual

1. Introduction

The Nearstream AWM20T is a compact and versatile dual-channel wireless clip-on microphone system designed for high-quality audio recording. It features two transmitters (TX), one receiver (RX), and a portable charging/storage case. This system is ideal for live streaming, vlogging, interviews, and other content creation scenarios, offering stable transmission, noise cancellation, and wide device compatibility.

2. What's in the Box

Image: All components included in the AWM20T package.

• 1 x Fabric Bag
• 1 x C-to-C Connection Cable
• 1 x 3.5 mm TRS to TRRS Cable
• 1 x 3.5 mm TRS to TRS Cable
• 1 x Charging Case
• 1 x Receiver (RX)
• 2 x Transmitters (TX)
• 1 x 2-in-1 Charging Cable
• 2 x Furry Windshields
• 1 x Lightning Adapter

3. Product Overview

Image: Detailed view of RX and TX components.

Receiver (RX)

1. LCD display screen
2. 3.5mm connection for phone and camera
3. 3.5mm headphone monitoring interface
4. Charging indicator light
5. Power button
6. Type-C charging interface/OTG interface
7. Charging contact

Transmitter (TX)

1. Status indicator light
2. Built-in microphone
3. 3.5mm external microphone interface
4. TX charging indicator light
5. Power/noise reduction button
6. Mute/pairing button
7. Type-C charging interface
8. Charging contact

Real-Time Monitoring Display

Image: Receiver's HD display for real-time monitoring.

The receiver features an HD display that provides real-time information on:

• Pairing status
• Microphone gain level
• Battery indicator for both TX and RX

4. Setup and Connection

Automatic Pairing

Image: Plug and Play functionality.

The AWM20T system is designed for plug-and-play operation. The receiver automatically pairs with the transmitters when removed from the charging case, eliminating the need for manual pairing or app installation.

Connecting to Recording Devices

Image: Wide compatibility with various devices.

The AWM20T offers wide compatibility with various devices using the included cables and adapters:

• DSLR Camera: Use the included 3.5mm TRS to TRS cable. Connect one end to the RX's 3.5mm output and the other to your DSLR camera's microphone input.
• Smartphone/Tablet (Lightning Port): Use the included Lightning adapter. Connect the RX's Type-C output to the Lightning adapter, then plug the adapter into your device.
• Smartphone/Tablet (USB-C Port): Use the included Type-C to Type-C cable. Connect one end to the RX's Type-C output and the other to your device's USB-C port.
• Computer (3.5mm Jack): Use the included 3.5mm TRS to TRRS cable. Connect one end to the RX's 3.5mm output and the other to your computer's 3.5mm audio input.

Ensure all connections are secure before beginning your recording.

5. Operating Instructions

Power On/Off

The transmitters and receiver power on automatically when removed from the charging case. To power off, place them back into the charging case or long-press the power button on each unit.

Noise Cancellation

Image: One-Click Noise Cancellation using ProperClean Technology.

The AWM20T features a one-click noise cancellation function to achieve crystal-clear audio recordings even in challenging, noisy environments. Press the noise reduction button (labeled '5' on the TX diagram) to activate or deactivate this feature. The system utilizes ProperClean Technology, incorporating:

• Omnidirectional microphone
• DSP Chip technology
• Integrated noise suppression algorithm
• Furry windshields (included) to protect against windblast

Image: 4 Essential Strategies to Reduce Noise.

Volume Control

Adjust the audio input volume directly on the receiver (RX) using the volume up (+) and volume down (-) buttons. Monitor the audio input levels on the RX's LCD display to prevent clipping or low audio.

Real-Time Audio Monitoring

Connect headphones to the 3.5mm headphone monitoring interface on the receiver (RX) to monitor your audio in real-time during recording. This ensures optimal sound quality and allows for immediate adjustments.

6. Maintenance

Charging the System

Image: 20-Hour Battery life details.

The AWM20T system offers an impressive battery life:

• Transmitters (TX): Up to 7 hours of continuous operation on a full charge.
• Receiver (RX): Up to 6 hours of continuous operation on a full charge.
• Charging Case: The 1300mAh charging case can fully charge both TX and RX units at least twice, extending the total battery life to up to 20 hours.

To charge, simply place the transmitters and receiver into the charging case. The charging case itself can be charged via its Type-C port using the included 2-in-1 charging cable. Individual units can also be charged directly via their Type-C ports if needed.

Cleaning and Storage

• Wipe the units with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials.
• Keep the charging contacts clean and free of dust.
• Store the system in the included fabric bag or charging case when not in use to protect it from dust, moisture, and physical damage.
• Avoid exposing the devices to extreme temperatures or direct sunlight.

7. Troubleshooting

No Audio or Poor Sound Quality

• Check Connections: Ensure all cables (TRS to TRS, Type-C to Type-C, Lightning adapter) are securely connected to both the receiver and your recording device.
• Verify Pairing: Check the RX's LCD display to confirm that the transmitters are paired (indicated by pairing status icons). If not, place them back in the charging case and remove them to re-initiate automatic pairing.
• Adjust Volume: Ensure the microphone gain level on the RX is not too low or too high, which could cause low audio or clipping.
• Noise Cancellation: If recording in a noisy environment, activate the one-click noise cancellation feature on the TX. Ensure furry windshields are used outdoors to mitigate wind noise.
• Device Compatibility: Confirm your recording device's microphone input settings are correctly configured to receive audio from an external microphone.

Intermittent Signal or Disconnections

Image: 200M Long-Distance Wireless Transmission with ultra-low latency.

• Operating Range: The system supports up to 200m (650ft) transmission in open, unobstructed environments. Ensure you are within this range and there are no significant physical obstructions between the TX and RX.
• Interference: While designed for stable transmission in crowded RF environments, strong electromagnetic interference can affect performance. Try moving to a different location or away from other wireless devices.
• Battery Level: Check the battery indicators on the RX display. Low battery levels can affect signal stability.

Battery Not Charging

• Check Charging Cable: Ensure the 2-in-1 charging cable is properly connected to the charging case and a power source.
• Clean Contacts: Verify that the charging contacts on the units and inside the charging case are clean and free of debris.
• Power Source: Try a different USB power adapter or port.

8. Specifications

9. User Tips

• iPhone Compatibility: The Nearstream AWM20T is compatible with iPhone 13 Pro and other Lightning-enabled iPhones using the included Lightning adapter. Ensure the adapter is securely connected.
• Optimal Placement: For best audio quality, clip the transmitter microphone approximately 6-8 inches from your mouth.
• Wind Noise: Always use the included furry windshields when recording outdoors to minimize wind interference.
• Monitor Regularly: Utilize the real-time monitoring feature with headphones to catch any audio issues during recording, rather than discovering them during post-production.

10. Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the official nuroum website or contact their customer service directly. Keep your purchase receipt as proof of purchase for any warranty claims.