BOYA BY-V4 Four Channel Wireless Microphone System User Manual

BOYA BY-V4 Four-Channel Wireless Microphone System

Specifications

• Product: Four-Channel Wireless Microphone System
• Frequency: 2.4GHz
• Model: BY-V4U

Product Information

The BY-V4U is a four-channel wireless microphone system designed for various applications such as performances, conferences, speeches, podcasts, vlogging, and mobile journalism. It operates on the 2.4GHz spectrum and features automatic channel hopping to avoid static noise and audio dropouts.

Product Structure

Wireless Transmitter (BY-V4-TX)

• Built-in Microphone
• Status Indicator
• NR Button for noise cancellation
• Belt Clip (360-degree rotation)
• USB-C Charging Port
• Charging Contacts
• Foam Windscreen

3.5mm TRS Receiver (BY-V4-RX35)

• USB-C Connector
• USB-C Charging Port (for external device power)
• Speaker Switch
• Status Indicator
• Pair Pinhole

Charging Case (BY-V4-CC)

• Charging Indicator (Battery level indication)
• USB-C Charging Port

Product Usage Instructions

1. Connect the receiver to the USB-C port of a mobile device.
2. Press and hold the power button for 2 seconds to turn on the transmitter(s).
3. If pairing is needed, follow the steps provided in the manual.
4. Launch a video or audio recording app and select the external microphone option if required.

FAQ

• Q: Can I use the BY-V4U system for live performances?
  • A: Yes, the BY-V4U system is suitable for live performances with its four-channel capability.
• Q: How do I know if the transmitter battery is low?
  • A : The transmitter’s status indicator will blink red when the battery is low.
• Q: Can I charge my mobile device using the receiver’s USB-C port?
  • A: Yes, most mobile devices with a USB-C port can be powered and charged through the BY-V4U receiver’s USB-C port while in use.

Statement

Please read this manual carefully before using it and strictly operate and store it in accordance with the instructions. Please save the manual for your future reference. If you need further assistance than the user manual, please consult your retailer for help or email us: sales@boya-mic.com

Cautions

1. The non-professional teardown is strictly prohibited.
2. Please keep it away from heat sources such as radiators or spotlights.
3. Do not remove the battery without professional’ help.
4. Please clean the device with only a soft, dry cloth.
5. When using and storing, please keep away from the dust and moisture.
6. For the best pick-up pattern, do not hold your hand against the microphone capsule cover.

General Introduction

The BY-V4/ BY-V4U kit, a four-channel wireless microphone system, has four sound sources miked up simultaneously with ease. The kits can record multiple sound sources for 4-person performances, conferences, speeches, podcasts, vlogging, mobile journalism, and more.

Built-in omnidirectional microphone, the transmitter features 360 degrees of sound pickup. It also boasts high-performance noise cancellation, which is available for improving the recording effect in a noisy environment. The BY-V4 kit features 3.5mm TRS analog audio output for cameras, mixers, etc. The BY- V4U kit features USB-C digital audio output for smartphones, tablets, computers, and other mobile devices. In addition, the receivers have USB-C charging ports, which support charging and powering of devices while in use.

The BY-V4/ BY-V4U operates on the 2.4GHz spectrum and automatically * The BY-V4/ BY-V4U operates on the 2.4GHz spectrum and automatically

Features

• Up to 200 meters of wireless transmission without obstacles
• High-performance noise cancellation algorithms – 48kHz HD audio format retained
• Wide-range 20-20,000Hz frequency response – delivers exceptional high-quality sound
• Up to 6 hours of operating time for a transmitter
• 3.5mm TRS analog output, USB-C, and digital output – universal compatibility with cameras, smartphones and computers
• Enable the device’s speaker without unplugging the receiver
• 360° rotating back clip on transmitter
• Charging case included – make the kit easy to carry on

Product Structure

Wireless Transmitter (BY-V4-TX)

1. Built-in Microphone

2. Status Indicator
   Status| Indicator
   ---|---
   Unpaired| Blinking blue and red alternately
   Pairing| Blinking blue rapidly
   Paired successfully| Static blue
   Microphone Muted| Blinking blue slowly
   Noise cancellation enabled| Static green
   Maximum/ Minimum gain| Blinking blue 3 times rapidly
   Low battery| Blinking red
   Charging (in shutdown mode)| Static red

   • NOTE:
   • If charging the unit when it is ON, the indicator will display the current working status instead of the charging status.
   • Please charge the transmitter when TX indicates low battery status, or it will automatically shut off within 10 minutes.
   • The noise cancellation feature cannot be enabled or disabled when the microphone is muted.

3. Power Button

   • Press and hold for 2 seconds to power on or off.
   • Press to mute or unmute the microphone.
   • Press and hold for 5 seconds to enter pairing status in shutdown mode.

4. NR Button
   Press to enable or disable the noise cancellation.

5. Belt Clip

   • It can rotate 360 degrees.

6. USB-C Charging Port
   For charging the transmitter.

7. Charging Contacts

8. Foam Windscreen

3.5mm TRS Receiver (BY-V4-RX35)

1. USB-C Connector
   It can be connected to a smartphone, tablet, computer, and other mobile devices featuring a USB-C port.

2. USB-C Charging Port
   When the BY-V4-RXU receiver is plugged into an external device, the external device can be powered via this charging port.
   NOTE: Most mobile devices featuring a USB-C port can be powered and charged through this port while in use.

3. Speaker Switch
   Toggle to enable or disable the phone’s speaker.

4. Status Indicator
   Status| Indicator
   ---|---
   Unpaired| Blinking blue slowly
   Pairing| Blinking blue rapidly
   Paired Successfully| Static blue

5. Pair Pinhole
   Insert the included pairing pin into the hole and press to enter the pairing state.

Charging Case (BY-V4-CC)

1. Charging Indicator
2. USB-C Charging Port

How to Use

For the kit of BY-V4U

1. Connect the receiver to the USB-C port of a mobile device such as a smartphone, tablet, or computer.
2. Press and hold the power buttons for 2 seconds to turn on the transmitter(s).

Pairing

The transmitter(s) and receiver are paired by default. If they are disconnected, please follow the below steps:

1. To make the transmitter(s) enter the pairing state, press and hold its power button for 5 seconds in shutdown mode until its status indicator blinks blue rapidly.
2. Then, insert the included pairing pin into the small pinhole on the receiver and press once. The receiver enters the pairing mode and its indicator will blink blue quickly.
3. The transmitter (s) and receiver will be successfully paired within 10 seconds. Their status indicators glow static blue.
4. Launch a video or audio recording app. Then, select external microphone, if applicable (app-dependent).
5. It is recommended to record a sample and play it back to check if the audio level is acceptable before recording.
6. To improve the recording effect in a noisy environment, it is recommended that press the button on the transmitter(s) to enable noise cancellation.
7. Slide toward on the receiver to enable the phone’s speaker. Sound can be played directly without unplugging the receiver.

NOTE:

• If you use the receiver with more than one transmitter, you will need to set up the receiver first and then pair the transmitters with it in turn.
• Due to the 2.4GHz wireless frequency, the signal can be easily attenuated. Please try to avoid obstacles, such as walls and buildings, and avoid close proximity to devices with 2.4GHz signal, such as high-power Wi-Fi antennas, radios,   etc.

Troubleshooting

If you encounter problems when using the unit, please refer to the following checklist before contacting technical support. If the problem cannot be solved, please contact the dealer’s after-sales service department.

No sound

1. Make sure the transmitter and receiver are paired, and the receiver light glows static blue.
2. Make sure the microphone is not currently muted. If the transmitter’s indicator blinks blue slowly, press its power button to unmute the microphone.

The operating range is limited, and sound changes, or noise appears

1. Make sure there is no interference from high-power wireless routers or devices in your recording environment. If the recording environment can’t be changed, you need to find the best distance and angle to record.
2. Due to the 2.4GHz wireless frequency, the signal can be easily attenuated. Please try to avoid obstacles, such as walls and buildings, and avoid close proximity to devices with 2.4GHz signals, such as high-power Wi-Fi antennas, radios, etc.
3. Make sure the receiver is well connected to your device properly.

A unit doesn’t power on
If the battery is completely depleted due to the unit has not been used for a long time, charge the unit.
The units automatically shut down
Both the transmitter and 3.5mm TRS receiver will automatically power down after 10 minutes if they aren’t paired.
The transmitter doesn’t enter the pairing state
Turn off the transmitter, press and hold its power button for 5 seconds until its status indicator blinks blue rapidly to pair again.
Can’t pair when four transmitters need to be paired with a receiver

1. Make sure that the transmitters are paired with the receiver one by one, not at the same time. Only when a transmitter is paired with the receiver, can the second transmitter be paired with it.
2. If a transmitter fails to be paired with a receiver, turn the transmitter off and press and hold its power button for 5 seconds to pair again.

The charging case can’t charge the transmitter(s) or receiver

1. If the remaining charge of the charging case is too low, please recharge the case. Try again.
2. Wipe the charging contacts on the transmitter(s), receiver, and charging pins in the case with a clean cloth. Make sure there is no dirt covering them.
3. If the touch points are not firmly connected due to a lack of magnetic force, please contact BOYA after-sales support.

The indicator doesn’t display charge status
Only if the transmitter and 3.5mm TRS receiver are turned off, do their indicators display the charge status while charging.

Specifications

BY-V4-TX Transmitter

• Transmission Type: 2.4GHz digital frequency
  

• Modulation: GFSK
  

• Polar Pattern: Omnidirectional
  

• Antenna: Built-in PIFA antenna
  

• Operating Range: Up to 200m (Measured in an open environment without obstacles and interference.)
  

• RF Output Power: < 10dBm
  

• Distortion:≤ 0.1%
  

• Frequency Response: 20Hz-20kHz
  

• Sensitivity; -42 ± 2dB
  

• Reference Audio Input Level: -20~-42dBu (MIC input, OdB Gain)
  

• Signal-to-Noise Ratio: > 80dB
  

• Audio Input: Built-in Capsule
  

• Battery Voltage/ Capacity: 3. 7V/ 95mAh
  

• Power Requirements; Built-in Li-ion Battery or Charging Contact or USB Type-C DC 5V
  

• Battery Life; Approx. 6 hours
  

• Charging Time; Approx. 2 hours
  

• Weight: Approx. 10.5g
  

• Dimensions; 62.6mm X 18.3mm X 10.2mm
  

• Operating Temperature: -20°C ~+ 55°C
  

• Storage Temperature: -20°C ~+ 55°C

BY-V4-RXU Receiver

• Transmission Type: 2.4GHz digital frequency
  

• Modulation: GFSK
  

• Antenna: Built-in PIFA antenna
  

• Operating Range: Up to 200m (Measured in an open environment without obstacles and interference.)
  

• RF Output Power: <10dBm
  

• Frequency Response: 20Hz-20kHz
  

• Signal-to-Noise Ratio: > 80dB
  

• Audio Output: USB Type-C Connector
  

• Power Requirements: Powered by the external devices
  

• Weight; Approx. 9g
  

• Dimensions; 62.5mm X 18.3mm X 10.2mm
  

• Operating Temperature; 0°C ~ +50°C
  

• Storage Temperature: -20°C ~+ 55°C

BY-V4-CC Charging Case

• Battery Type: Built-in lithium-ion battery
  

• Battery Voltage/ Capacity: 3.7V/ 1500mAh
  

• Charging Time: Approx. 2 hours
  

• Power Requirements; USB-C (DC 5V/ 2A)
  

• Charge Cycle Times: 1 times (4TX+1 RX35) 2 times (4*TX)
  

• Weight: Approx. 160g
  

• Dimensions; 143.6mm X 80.5mm X 35.5mm
  

• Operating Temperature ;0°C ~ +50°C
  

• Storage Temperature: -20°C ~+ 55°C

In the Box

www.boya-mic.com

SHENZHEN JIAYZ PHOTO INDUSTRIAL., LTD.

The BOYA logo is a trademark that is registered and owned by Shenzhen Jiayz Photo Industrial., Ltd.

• TEL: 400 6131096
• Email : sales@boya-mic.com
• www.boya-mic.com
• www.jiayz.com

References

• Mic
• BOYA Microphones | Audio gears for today's creators

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