WARM BOX WM-J3

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WARM BOX Mini Wireless Lavalier Microphone User Manual

Model: WM-J3 (J3)

Introduction

This user manual provides comprehensive instructions for the operation, maintenance, and troubleshooting of your WARM BOX Mini Wireless Lavalier Microphone. Designed for ease of use and high-quality audio capture, this microphone system is compatible with a wide range of devices, including iPhones, Android phones, laptops, and tablets. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.

Package Contents

Upon opening the package, please verify that all the following components are included:

  • Wireless Lavalier Microphone x2
  • Anti-Spray Sponge Heads x2
  • Microphone Mounting Clip x2
  • USB-C Port Wireless Receiver
  • USB-C to Lightning Adapter
  • USB-C to USB-A Adapter
  • USB-C Charging Cable
  • User Manual
Image showing all components included in the WARM BOX Mini Wireless Lavalier Microphone package: two microphones with furry wind muffs, a USB-C receiver, USB-C to Lightning and USB-A adapters, two clips, and a charging cable.

Figure 1: Contents of the WARM BOX Mini Wireless Lavalier Microphone package.

Product Features

The WARM BOX Mini Wireless Lavalier Microphone is equipped with several advanced features to enhance your audio recording experience:

  • Clear Audio & Stable Connection: Features an advanced DSP chip for crystal-clear sound and stable audio transmission up to 65 feet (20 meters) with minimal interference.
  • Automatic Pairing: Designed for plug-and-play convenience, requiring no Bluetooth, apps, or internet connections. Simply plug in the receiver and power on the microphone for instant connection.
  • Long Battery Life: Each microphone provides up to 7 hours of continuous use, totaling 14 hours when both microphones are used alternately.
  • User-Friendly Functions: Includes one-touch controls for Mute, Noise Cancellation, and Reverb functions.
  • Wide Compatibility: Supports a broad range of devices including iPhones, iPads, Android phones with Type-C, laptops, and desktops via included USB-C, USB-A, and Lightning adapters.
Close-up of the microphone showing an 'Upgraded DSP' chip and waveforms indicating sound before and after noise reduction.

Figure 2: Smart Noise Reduction with Upgraded DSP.

Close-up of the microphone's LED display showing indicators for connection, mute, noise reduction, and battery status.

Figure 3: Wireless Lavalier Microphone LED Display Indicators.

A person standing on a mountain peak, recording with a smartphone and the wireless microphone, illustrating 100ft/30m long-range transmission.

Figure 4: 100ft/30m Long-range Transmission Capability.

Two microphones with a clock graphic indicating 14 hours of battery life, and text showing 2.4GHz wireless transmission, up to 7 hours per mic, and 1.5 hours charging time.

Figure 5: Battery Life and Charging Information.

Setup Guide

  1. Initial Charging: Before first use, ensure both microphones and the receiver are fully charged using the provided USB-C charging cable. The battery indicator on the microphone will show red when below 10% and off when sufficiently charged.
  2. Connect Receiver:
    • For devices with a USB-C port (e.g., Android phones, newer iPhones, laptops): Directly plug the USB-C receiver into your device's USB-C port.
    • For iPhones/iPads with a Lightning port: Attach the USB-C to Lightning adapter to the USB-C receiver, then plug the assembly into your device's Lightning port.
    • For devices with a USB-A port (e.g., older laptops, desktops): Attach the USB-C to USB-A adapter to the USB-C receiver, then plug the assembly into your device's USB-A port.
  3. Power On Microphone: Press and hold the power button on the microphone for 3 seconds until the connection indicator light blinks.
  4. Automatic Pairing: The microphone will automatically pair with the receiver. The connection indicator light will become steady (not blinking) once successfully connected. No additional apps or Bluetooth settings are required.
Diagram showing the three steps for automatic pairing: 1. Plug in the receiver, 2. Power on the microphone, 3. Device is connected and ready to record.

Figure 6: Auto Pairing Process.

Three diagrams illustrating wide compatibility: USB-C receiver for Type-C devices, USB-C receiver with USB-A adapter for laptops/PCs, and USB-C receiver with Lightning adapter for iOS devices.

Figure 7: Wide Compatibility with various devices.

Operating Instructions

The microphone features intuitive controls for various functions:

  • Power On/Off: Press and hold the power button for 3 seconds.
  • Mute Function: Double-tap the power button to mute or unmute the microphone. The mute indicator will turn on when muted.
  • Noise Reduction Function: Press the power button once to toggle noise reduction on or off. The noise reduction indicator will turn on when active.
  • Reverb Function: Triple-click the power button to activate or deactivate the reverb effect. This feature is particularly useful for music recording or adding depth to voice.
  • Charging While Recording: The receiver features a Type-C port, allowing you to charge your phone or device simultaneously while recording, ensuring uninterrupted sessions.
Diagram showing the multifunctional controls of the wireless microphone: Power On/Off (3-second press), Mute Function (double-tap), Noise Reduction Function (single press), Reverb Function (triple-click).

Figure 8: Multifunctional Wireless Microphone Controls.

A woman exercising while her phone is connected to the microphone receiver and charging via a power bank, illustrating the ability to charge while recording.

Figure 9: Charging your phone while recording video.

Maintenance

To ensure the longevity and optimal performance of your WARM BOX Mini Wireless Lavalier Microphone, follow these maintenance guidelines:

  • Cleaning: Use a soft, dry cloth to wipe the microphone and receiver. Do not use liquid cleaners or solvents, as they may damage the device.
  • Storage: Store the microphone system in a cool, dry place away from direct sunlight and extreme temperatures. When not in use for extended periods, ensure the devices are fully charged before storage.
  • Handling: Avoid dropping or subjecting the microphone and receiver to strong impacts. Handle adapters carefully to prevent bending or breaking pins.
  • Sponge Heads: The anti-spray sponge heads can be gently removed and cleaned if necessary. Ensure they are completely dry before reattaching.

Troubleshooting

If you encounter any issues with your WARM BOX Mini Wireless Lavalier Microphone, please refer to the following troubleshooting steps:

ProblemPossible CauseSolution
Microphone not connecting/pairing.
  • Microphone not powered on.
  • Receiver not properly plugged in.
  • Low battery on microphone or receiver.
  • Device settings interfering.
  • Press and hold the microphone power button for 3 seconds.
  • Ensure the receiver is fully inserted into your device's port. Try re-inserting.
  • Charge both the microphone and receiver fully.
  • Check your device's audio input settings to ensure the external microphone is selected, if applicable for your recording app.
Poor audio quality (noise, distortion).
  • Noise reduction not activated.
  • Microphone too far from the sound source.
  • Environmental interference.
  • Sponge head not properly attached.
  • Press the power button once to activate noise reduction.
  • Ensure the microphone is clipped close to the speaker's mouth.
  • Move away from strong electromagnetic fields or other wireless devices.
  • Ensure the anti-spray sponge head is securely attached to the microphone.
Microphone not responding to function presses (mute, reverb).
  • Incorrect button press sequence.
  • Temporary software glitch.
  • Review the "Operating Instructions" section for correct button press sequences (single, double, triple tap).
  • Try powering the microphone off and on again.
No sound recorded or output.
  • Microphone not connected.
  • Device volume too low.
  • Recording application settings.
  • Verify the microphone is paired and the connection indicator is steady.
  • Increase the volume on your recording device.
  • Check the audio input settings within your recording application to ensure the external microphone is selected.

Specifications

FeatureDetail
Model NameWM-J3 (J3)
BrandWARM BOX
Microphone Form FactorLavalier
Connectivity TechnologyUSB (Wireless)
Connector TypeUSB-C (with Lightning and USB-A adapters)
Polar PatternUnidirectional
Frequency Response2.4 GHz
Audio Sensitivity50 dB
Signal-to-Noise Ratio80 dB
Number of Channels2
Power SourceBattery Powered
Battery TypeLithium (2 CR5 batteries included)
Battery Life (Single Mic)Up to 7 hours
Charging TimeApproximately 1.5 hours
Item Weight80 Grams (2.82 ounces)
Product Dimensions (L x W x H)1.18 x 0.78 x 0.79 inches
MaterialPlastic
Compatible DevicesLaptop, Smartphone, Tablet
Recommended UsesIndoor/Outdoor recording, Vlogging, Video Recording, Live Streaming, Online Teaching, Interviews.

Warranty and Support

The WARM BOX Mini Wireless Lavalier Microphone comes with a 1-year warranty from the date of purchase. Additionally, a 30-day free return policy is offered. For warranty claims, technical support, or any inquiries regarding your product, please contact the manufacturer or the seller directly through your purchase platform.

Please retain your proof of purchase for warranty validation.

Important Safety Information

  • Do not disassemble, repair, or modify the device.
  • Keep the device away from water, fire, flammable gases, and corrosive substances.
  • Avoid exposing the device to extreme temperatures or high humidity.
  • Dispose of batteries and electronic components responsibly according to local regulations.

© 2025 WARM BOX. All rights reserved.

Product Model: WM-J3

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