Broadcasting-level Multi-functional Mini UHF Wireless Microphone User Manual

Technology Parameters

Transmitter (TX)

Receiver (RX)

Foreword

Thanks for purchasing COMICA BoomX-U.

Main Features

• Portable Dual-channel UHF Wireless Microphone, Broadcast Level
• Support Multi-receiver Monitoring & Shooting
• Internal and External Mic Two Input Modes
• 180° Foldable Antenna, 120m Transmission Distance
• Support Screen Flip and Bilingual Selection
• 48 Channels Used for Several Devices Working Together
• Support Auto-scanning/Manual Channel-setting
• LCF, M/S Switch, 16-level Adjusted Gain Control, Muting Functions
• Real-time Visual Power and Audio Dynamic Monitor
• Special Anti-loose Design for External Lavalier Mic
• Colorful TFT Display, High Resolution
• Designed with Multi-functional Belt Clip and Compact

Notice

• Please make sure the IR sensor are closely aligned when pairing.
• Don't block the antenna position to avoid any poor signal generated.
• Please attention that it can not realize STEREO function when in single channel mode.
• It is recommended to adjust the antenna of transmitter and receiver to appropriate angle for stable transmission and long working distance.
• It is recommended to keep a distance of more than one meter between the two transmitters when using IR sync function, or it is easy to cause mismatching.
• This product belongs to high-precision instruments, please avoid falling, collision or pounding.
• Do not use the equipment in the vicinity of heat source or interference source, such as radiator, oven, refrigerator or air conditioner.
• If the pick-up distance is close or when used outdoors, please put on the wind muff to prevent sound burst or reduce wind noise.
• Do not use the equipment in rain or in a damp environment to avoid short-circuit danger.
• Please keep the product in a dry environment.

Main Parts

Transmitter (TX)

Receiver (RX)

Packing List

Purchase Options:

• U1 = TX + RX
• U2 = TX + TX + RX

Accessories

• 1. 3.5mm Lavalier Mic
• 2. Wind Muff
• 3. 3.5mm TRS-TRRS Audio Cable
• 4. 3.5mm TRS-TRS Audio Cable
• 5. 3.5mm-XLR Audio Output Cable
• 6. USB A-USB C Charging Cable
• 7. Carry Case
• 8. User Manual
• 9. Warranty Card

The accessories of each combination include:

U1 includes: 1x Transmitter, 1x Receiver, and accessories 1-9.

U2 includes: 2x Transmitters, 1x Receiver, and accessories 1-9.

Components and Instruction - Transmitter (TX)

1. Power / Low Cut Filter Button: Long press for On/Off; Short press for Low Cut Filter.

2. Muting Button: Long press to switch between normal recording and mute.

3. Power / Low Cut Filter Indicator Light: Blue light solid indicates power on; Purple light solid indicates Low Cut Filter mode; Red light blinks when pairing or low power; Red light solid when charging.

4. Audio Status Indicator Light: Blue light blinks when sound is input; Red light solid when sound is distorted or in mute status.

5. External Mic Locking Buckle: Secures the external microphone cable.

6. 3.5mm TRS Port of External Mic: Connects external microphones. The internal microphone is automatically disabled when an external mic is used.

7. Internal Mic: Built-in microphone for audio capture.

8. IR Sensor: Used for wireless pairing with the receiver. Ensure close alignment for successful pairing.

9. USB-C Charging Port: Connects to a 5V power source via USB A-USB C cable for charging.

10. Reset Hole: Insert a reset pin to reset the device if it crashes or fails to turn on.

11. Belt Clip: For attaching the transmitter to clothing or equipment.

12. Antenna: For wireless signal transmission.

Components and Instruction - Receiver (RX)

1. Power Button: Long press for On/Off. Short press on the function menu interface to exit the current screen.

2. SET Function Button: Short press to enter the settings menu and navigate through options.

3. Function Selection Button +: Short press for function adjustment (increase value).

4. Function Selection Button -: Short press for function adjustment (decrease value).

5. Group A /B Working Status Indicator: Indicator light off: Unpaired. Blue light solid after successful pairing; Red light blinks when low power; Red light solid when charging.

6. 3.5mm TRS Audio Output Port: Connects to cameras (via TRS-TRS cable) or mobile phones (via TRS-TRRS cable).

7. IR Sensor: Used for wireless pairing with the transmitter. Ensure close alignment for successful pairing.

8. 3.5mm TRS/TRRS Monitoring Port: Connect headphones to monitor audio.

9. Screen Flip Function: Allows the screen display to be flipped 180 degrees for different usage scenarios.

10. Reset Hole: Insert a reset pin to perform a device reset if it becomes unresponsive or crashes.

11. USB-C Charging Port: Connects to a 5V power source via USB A-USB C cable for charging.

12. Belt Clip: For attaching the receiver to clothing or equipment.

13. Group A Antenna: Receives wireless signals for Group A.

14. Group B Antenna: Receives wireless signals for Group B.

Installation - Transmitter (TX)

1. Using Internal Microphone:

Adjust the antenna angle. Install the transmitter on the collar using the belt clip so that the internal microphone points towards the sound source. For optimal signal, rotate the antenna 180 degrees. For better concealment, the belt clip can be fixed and used outwards.

2. Using External Microphone:

Insert the 3.5mm TRS microphone input cable into the transmitter's 3.5mm TRS external microphone port and tighten it. Clip the transmitter to the belt using the belt clip and clip the lavalier microphone to your collar. When using an external microphone, the internal microphone is automatically turned off.

Installation - Receiver (RX)

1. Work with Camera:

Adjust the antenna angle. Fix the receiver to the camera's hot shoe mount using the belt clip. Connect the receiver to the camera using the 3.5mm TRS-TRS audio cable. Insert headphones into the monitoring port for monitoring. For optimal signal, rotate the antenna 90 degrees.

2. Work with Smartphone:

Clip the receiver to the cold shoe mount using the belt clip. Connect the receiver to the mobile phone using the 3.5mm TRS-TRRS audio cable. Ensure the 3.5mm TRS plug connects to the receiver's audio output jack, and the 3.5mm TRRS plug connects to the mobile phone's audio input jack. Insert headphones into the 3.5mm TRS/TRRS monitoring port for monitoring. If a mobile phone holder is not available, the receiver can be clamped to the mobile phone using its belt clip.

Function and Usage - Transmitter (TX)

1. Power / Low Cut Filter Button: Long press to turn the device On/Off. Short press to activate/deactivate the Low Cut Filter (LCF).

2. Muting Button: Press and hold to toggle between normal recording and mute status.

3. Power / Low Cut Filter Indicator Light:

• Blue light solid: Transmitter is powered on.
• Purple light solid: Low Cut Filter mode is active.
• Red light blinking: Transmitter is pairing or battery is low.
• Red light solid: Transmitter is charging.

4. Audio Status Indicator Light:

• Blue light blinking: Audio input detected.
• Red light solid: Audio is distorted or muted.

5. Reset Hole: Insert a reset pin to perform a device reset if it becomes unresponsive or crashes.

6. Internal Mic: Position the microphone towards the sound source for optimal capture.

7. 3.5mm TRS External Microphone Port: Connect an external lavalier microphone using a 3.5mm TRS cable. The internal microphone is automatically disabled when an external microphone is connected.

8. IR Sensor: Align closely with the receiver's IR sensor for successful wireless pairing.

9. USB-C Charging Port: Connect to a 5V power source using a USB A-USB C charging cable to charge the transmitter.

Function and Usage - Receiver (RX)

1. Power Button: Long press to turn the device On/Off. Short press on menu interfaces to exit the current screen.

2. SET Function Button: Short press to enter the settings menu and navigate through options.

3. Function Selection Button +: Short press for function adjustment (increase value).

4. Function Selection Button -: Short press for function adjustment (decrease value).

5. Group A /B Working Status Indicator: Indicator light off: Unpaired. Blue light solid after successful pairing; Red light blinks when low power; Red light solid when charging.

6. 3.5mm TRS Audio Output Port: Connect to cameras (via TRS-TRS cable) or mobile phones (via TRS-TRRS cable).

7. IR Sensor: Align closely with the transmitter's IR sensor for successful wireless pairing.

8. 3.5mm TRS/TRRS Monitoring Port: Connect headphones to monitor audio.

9. Screen Flip Function: Allows the screen display to be flipped 180 degrees for different usage scenarios.

10. Reset Hole: Insert a reset pin to perform a device reset if it becomes unresponsive or crashes.

11. USB-C Charging Port: Connect to a 5V power source using a USB A-USB C charging cable to charge the receiver.

12. Belt Clip: For attaching the receiver to clothing or equipment.

13. Group A Antenna: Receives wireless signals for Group A.

14. Group B Antenna: Receives wireless signals for Group B.

Receiver (RX) Screen Display Instruction

• Group A Signal Strength: Indicates the signal strength for Group A.
• Group B Signal Strength: Indicates the signal strength for Group B.
• Receiver's Power Indication: Shows the remaining battery power of the receiver.
• Channel of Group A: Displays the current operating channel for Group A.
• Group A Transmitting Power: Shows the transmitting power level for Group A.
• Group B Transmitting Power: Shows the transmitting power level for Group B.
• Channel of Group B: Displays the current operating channel for Group B.
• Group A Audio Dynamic Display Bar: Visual representation of audio input levels for Group A.
• Group B Audio Dynamic Display Bar: Visual representation of audio input levels for Group B.

Receiver (RX) Operation Instruction

1. Auto Pairing of Group A/B:

1. Short press the SET button to enter the "setting" display page.
2. Press the +/- buttons to navigate to the "Auto Pair" mode for Group A or Group B.
3. Short press the SET button for adjustment. Press the +/- buttons to select "Yes" or "No" for pairing. Short press the SET button to confirm.
4. Upon successful pairing, it will display "Paired CHXX" (XX being the channel number). If pairing fails, it will display "Fail!".
5. Short press the SET button to return to the home screen. (Similar operations apply to other interfaces).

2. Manual Pairing of Group A/B:

Short press the SET button to enter the "setting" display page. Use the +/- buttons to manually adjust the channel for Group A or Group B. Short press the SET button for adjustment, then use the +/- buttons to select the desired channel. Short press the SET button to confirm and complete the pairing.

3. Volume Adjustment Group A/B:

Navigate to the "Volume" setting for Group A or Group B using the SET and +/- buttons to adjust the audio level.

4. Stereo/Mono Mode Adjustment:

Select between "Stereo" and "Mono" output modes. In Stereo Mode, Channel A acts as the left channel and Channel B as the right channel. Note that the STEREO function is not available in single-channel mode.

5. Screen Flip Function:

Access the "Screen Flip" setting to rotate the display 180 degrees for optimal viewing angles in different scenarios.

6. System Language:

In the "Language" menu, select the desired system language (e.g., English).

7. Version:

Check the current software version of the device in the "Version" menu.

Pairing Method

Dual-Channel Mode:

1. Set the display page to "Group A Pair Yes" or "Group B Pair Yes".
2. Ensure the IR sensors of the receiver and transmitter are closely aligned before initiating pairing.
3. Use the pairing function to pair the two transmitters respectively for the A/B Groups. (Group A acts as the left channel, Group B as the right channel).

Specifications

Transmitter (TX)

Receiver (RX)