BOYA BY-WM4 PRO Dual-Channel Digital Wireless Microphone Instruction Manual

BY-WM4 PRO
Dual-Channel Digital Wireless Microphone

Instruction Manual
Thank you for purchasing BOYA BY-WM4 PRO!
Designed for videographers on a limited budget and video hobbyists, BY-WM4 PRO is a new generation 2.4 GHz wireless microphone, dual-Channel for capturing audio with dual subjects to your smartphones, tablets, DSLR cameras, consumer camcorders, PCs, etc.

Feature：

• Dual-Channel Wireless Receiver
• Digital 2.4 GHz Frequency Band
• Super-clear recording sound
• Compatible with smartphones, DSLR cameras, consumer camcorders, PCs, etc.
• Lightweight and compact for easy carrying
• Omnidirectional lavalier microphone
• Hard case included
• Standard camera shoe mount and clip included
• Up to 60m (197ft) operation range (without obstacle)
• Power supplied by two AAA batteries for transmitter and receiver.

BY-WM4 Pro-K1 consists of one body-pack transmitter(TX4 Pro), a portable receiver (RX4 Pro), and their accessories as following:

BY-WM4 Pro-K2 consists of two body-pack transmitters(TX4 Pro), a portable receiver (RX4 Pro), and their accessories as follows:

Transmitter (TX4 Pro)

1. Microphone input
   – Connect the supplied lavalier microphone here.
   – Fully insert the microphone’s 3.5mm plug and make sure it clicks into place.

2. Line In

3. Power LED

1. The power LED flashes blue when the unit is on.
2. The power LED glows red when low power.
   For more details about LED indicators, please refer to as following:Status| Receiver| Transmitter
   ---|---|---
   The transmitter and the receiver connected.| Stays blue| Flashes continually
   every 2.5 seconds.
   The transmitter and the receiver disconnects.| Flashes continually every 1 second.| Flashes continually every 1 second.
   The receiver unit is turned OFF(Transmitter is still ON)| Off| Flashes in blue
   The Transmitter unit is turned OFF(Receiver is still ON)| Flashes in blue| Off
   Low power| Flashes in red

4. Power OFF/ON

5. Pair
   This button is for connecting signals.
   For details, please see “How to connect the transmitter and receiver” on page

7. Antenna
   Please don’t touch here during use, otherwise, it will affect the signal.

8. Battery compartment
   Accommodates two pieces of AAA batteries. For more details, please see “Installing batteries” on page 9.

9. Clip
   For more details, please see “Installing or uninstalling clip” on page 13.

Receiver (RX4 Pro)

1.  Earphone Jack (3.5mm diameter stereo mini-jack)
   To monitor the receiver output, connect the headphones to this connector.

NOTE：
Do not connect headphones with a monaural mini jack.
This may lead to short-circuiting of the headphone output, resulting in distorted sound output.

2. LINE OUT (audio output) Jack
   – For using a smartphone, tablet or Mac Connect one end (90° plug) of the supplied TRRS stereo 3.5mm mini output cable here, and the other end (straight plug) to a  smartphone.
   – For cameras, camcorders, audio recorders, and other audio/Video recording devices.
   Connect one end of the supplied TRS stereo 3.5mm mini output cable here, and the other end to the camera.

3. Power LED
   For more details, please see “Power LED” on page 5.

4. Power OFF/ON

5. Volume +/-
   Press these buttons to set the attenuation level of the input signal.

6. Antenna
   
   Please don’t touch here during use, otherwise, it will affect the signal.

7. Battery compartment
   Accommodates two pieces of AAA batteries.
   For more details, please see “Installing batteries” on page 9.

8. Clip
   For more details, please see “Installing or uninstalling clip” on page 13.

9. Shoe mount adapter

What’s the difference?

1. 3.5 mm TRRS connector
   – For smartphones, Tablet, Mac, or laptops with combo headphone/Mic jack

2. 3.5 mm TRS connector
   – For cameras, camcorders, audio recorders, and other audio/video recording devices.

How to use it
Insert batteries in the transmitter and receiver units

1.  Both transmitter and receiver require two AAA size batteries.
2. Slide and remove the transmitter’s battery compartment cover.
3. Insert two pieces of batteries.
4. Close the battery compartment cover.
5. Do the same ways as steps 2 to 4 to insert the battery into the receiver.

Connecting the transmitter and receiver using the microphone with a smartphone, tablet, Mac or laptop with combo headphone/Mic jack.
Receiver

1. Mount receiver to Smartphone, tablet, Mac or laptop.
2. Using a TRRS cable, plug the 3.5 mm connector(straight plug) into the audio jack of your smartphone.
3. Insert the 90° plug of the connecting cable into the receiver “LINE OUT” jack.
4. Insert earphones into the receiver “ ” for monitoring Sound if you need.
5. Slider the power ON/OFF switch to ON position ( the LED indicator will light in blue)
   Caution: Please do not mix up plug, for details, please refer to” What’s difference” on page 8.

NOTE:
Not all Android devices support an external microphone when taking video, and you may need to download a third-party app and set up a sound source as an external microphone.

Connecting the Transmitters and the Receiver
If transmitters and receivers disconnect, please follow the below steps:
Before leaving the factory, the connection between transmitters and receivers will be established.

1. Turn on the receiver and the transmitters.
2. Press the button “+” and “-“ for 3 seconds for the receiver and press “Pair” of one transmitter for 3 seconds at the same time.
3. When transmitter and receiver connect, the light of receiver will stay blue, the light of transmitters will flash every 2.5 seconds.
4. Repeat step 2 for the other transmitter.

Otherwise, the light for the receiver and transmitters will flash continually every 1 second, then try 1-4 steps again.

Using the microphone with cameras, camcorders, audio recorders, and other audio/video recording devices.

Receiver

1. Mount receiver to cameras, camcorders, audio recorders and other audio/video recording devices.
2. Using a TRS cable, plug the 3.5 mm connector into the audio jack of your camera.
3. Insert the other end of the connecting cable into the receiver “LINE OUT” jack.
4. Insert earphones into the receiver “ ” for monitoring Sound if you need.
5.  Slider the power ON/OFF switch to ON position (The LED indicator will light in blue)
   Caution: Please do not mix up audio cable, for details, please refer to” What’s a difference on page 8”.

Install microphone

1. The clip is mounted on the microphone before leaving the factory.
2. Both transmitter and receiver include a clip, which means you can mount them in any place you want.
3. Adjust the direction of the microphone to your mouth by rotating the Microphone.

If the receiver needs to be mounted onto the camera hot/cold shoe, please follow the below steps:

1.  Push the clip to the right side.
2. Push the cold shoe mount on the position.
3. Mounted receiver onto camera hot/cold shoe

Receiver: 3V/70mA
Dimensions:| Receiver: 45x70x35mm (1.82.81.4 inches)
Transmitter: 45x70x35mm (1.82.81.4 inches)
Weight:| Receiver: 47g (1.7 oz)
Transmitter: 47g (1.7 oz)

CAUTION

1. Please use our original audio signal cable which is equipped, it’s more compatible with the wireless microphone, and makes the sound better.
2. The figure given is only the approximate value that applies when there are no obstructions between the transmitter and receiver. This distance will vary depending on metal objects, people and other obstructions and on the signal strength.
3. Battery life may vary depending on the type of battery used.

IMPORTANT

• If you do not intend to use the wireless microphone for a long period of time, please remove the batteries from both the transmitter and receiver.
• Do not touch the lavalier/lapel microphone, transmitter, and receiver while recording, as this will cause noise to be recorded.
• Do not let the transmitter close to high-voltage equipment or to devices that emit strong electromagnetic fields, otherwise, it may cause the noise to be recorded.
• Do not use or leave the transmitter and receiver in hot, humid places.
• Do not leave the receiver attached to the camera when storing the camera in a case.
• Do not mix up to use the transmitter and receiver.

WARNING

• Keep the wireless microphone out of the reach of children.
• Never use leaking batteries and never expose batteries to excessive heat or fire.

MAINTENANCE

• Do not operate the device with wet hands or feet.

• Clean the equipment only in the way described in the instructions for use.

• Take care to prevent the equipment from dropping down. Make sure that the device is properly fastened and reliably mounted. If the device has dropped down on the floor have it inspected by a skilled electrician before you switch it on again.

• Should the equipment be damaged or defective, or if you notice a scorching smell:
  Interrupt the electric power supply immediately by removing the batteries. Do not operate the device with a damaged housing, do not repair the device yourself. Has the device only been repaired by a skilled electrician?

• Always keep your device in good condition, as specified in these instructions for use.

• Do not open the device.

WARNING
FCC STATEMENT :

This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.

Warning:
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
NOTE:
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is  encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV  technician for help.
RF warning statement:

The device has been evaluated to meet general RF exposure requirements. The device can be used in portable exposure conditions without restriction

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Shenzhen Jiayz Photo Industrial., Ltd.
COPY RIGHT 2010-2020
Email: sales@boya-mic.com
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