Holdsound BKM400 Wireless TV Headphones Instruction Manual

1. Introduction

This manual provides detailed instructions for the setup, operation, and maintenance of your Holdsound BKM400 Wireless TV Headphones. Please read this manual thoroughly before using the product to ensure proper function and to maximize your listening experience.

What's in the Box:

• Holdsound BKM400 Wireless Headphones
• USB Transmitter
• Type-C Charging Cable
• Optical Cable
• 3.5mm AUX Cable
• RCA (red/white) Cable

2. Safety Information

To ensure safe and proper use of your headphones, please observe the following guidelines:

• Hearing Protection: Avoid listening at high volume levels for extended periods to prevent hearing damage.
• Environmental Awareness: Do not use headphones in situations where inability to hear ambient sounds could be dangerous (e.g., driving, cycling, walking in traffic).
• Cleaning: Clean the headphones with a soft, dry cloth. Do not use liquid cleaners or aerosols.
• Battery Care: Do not attempt to replace the battery yourself. Dispose of batteries according to local regulations. Avoid exposing the headphones to extreme temperatures.
• Water Exposure: These headphones are not waterproof. Avoid exposure to rain, moisture, or submersion in liquids.

3. Product Overview

The Holdsound BKM400 Wireless TV Headphones are designed to provide a private and immersive audio experience for television viewing. Key features include:

• Private Listening: Enjoy TV audio without disturbing others, ideal for late-night viewing or shared living spaces.
• Enhanced Clarity: Features boosted volume and vocal clarity, beneficial for users with mild hearing loss.
• Plug & Play Connectivity: Simple setup with a USB transmitter, supporting various audio output options (USB, Optical, AUX, RCA).
• Ultra-Low Latency: Advanced Bluetooth 5.3 technology ensures audio-video synchronization with less than 40ms delay.
• Extended Range: Reliable wireless range up to 50 meters (164 ft) allows freedom of movement.
• Long Battery Life: Up to 40 hours of continuous playtime on a single charge.
• Comfortable Design: Adjustable headband and soft, breathable memory-protein ear cups for extended wear.

4. Setup

The Holdsound BKM400 headphones offer multiple connection methods to your TV. Choose the method that best suits your TV's available audio output ports.

4.1. USB Connection (Recommended for TVs with USB Audio Output)

This method is ideal for TVs that support audio output via their USB port. No additional audio cables are required.

1. Insert USB Transmitter: Plug the Holdsound USB Transmitter directly into an available USB AUDIO OUT port on your TV. The indicator light on the transmitter will flash red and blue alternately, indicating it is in pairing mode.
2. Power On Headphones: Long press the power button on the headphones for approximately 3 seconds to turn them on. The indicator light on the headphones will also flash red and blue alternately.
3. Pairing: After a few seconds, a slow breathing blue light will appear on both the headphone and the transmitter, indicating successful pairing.
4. Adjust TV Audio Settings (if no sound): If you experience no sound, navigate to your TV's audio settings and ensure the Digital Audio Output Format is set to PCM. Refer to your TV's manual for specific instructions.

4.2. 3.5mm AUX Connection

Use this method if your TV has a 3.5mm headphone or audio out jack.

1. Power the Transmitter: Plug the 3.5mm AUX cable into the transmitter's 3.5mm AUX port. Insert the transmitter directly into your TV's USB port or into an external USB power supply for power. The indicator light on the transmitter will flash red and green alternately.
2. Connect to TV: Plug the other end of the 3.5mm AUX cable into the 3.5mm/Headphone Audio Out port on your TV.
3. Power On Headphones: Long press the power button on the headphones for approximately 3 seconds to turn them on. The indicator light on the headphones will flash red and blue alternately.
4. Pairing: When a slow breathing blue light is on the headphone and a slow breathing green light is on the transmitter, the pairing is successful.
5. Adjust TV Audio Settings (if no sound): If no sound, adjust your TV's audio settings to USB or switch to another connection method.

4.3. Optical Connection

Use this method if your TV has a Digital Optical/SPDIF Audio Out port.

1. Prepare Optical Cable: Remove the plastic protective caps from both ends of the Optical Cable. Ensure the optical cable connects correctly to your TV.
2. Power the Transmitter: Plug the Optical Cable into the transmitter's optical port. Insert the transmitter directly into your TV's USB port or into an external USB power supply for power. The indicator light on the transmitter will flash red and white alternately.
3. Connect to TV: Plug the other end of the Optical Cable into the Digital Optical/SPDIF Audio Out port on your TV.
4. Power On Headphones: Long press the power button on the headphones for approximately 3 seconds to turn them on. The indicator light on the headphones will flash red and blue alternately.
5. Pairing: When a slow breathing blue light is on the headphone and a slow breathing white light is on the transmitter, the pairing is successful.
6. Adjust TV Audio Settings (if no sound): If no sound, navigate to your TV's audio settings and ensure the Digital Audio Output Format is set to PCM.

4.4. RCA Connection

Use this method if your TV has red and white RCA Audio Out ports.

1. Connect RCA and AUX Cables: Connect the RCA Cable to the 3.5mm AUX cable.
2. Power the Transmitter: Plug the 3.5mm AUX cable into the transmitter's 3.5mm AUX port. Insert the transmitter directly into your TV's USB port or into an external USB power supply for power. The indicator light on the transmitter will flash red and green alternately.
3. Connect to TV: Plug the red and white ends of the RCA Cable into the corresponding red and white RCA AUDIO OUT ports on your TV.
4. Power On Headphones: Long press the power button on the headphones for approximately 3 seconds to turn them on. The indicator light on the headphones will flash red and blue alternately.
5. Pairing: When a slow breathing blue light is on the headphone and a slow breathing green light is on the transmitter, the pairing is successful.
6. Adjust TV Audio Settings (if no sound): If no sound, navigate to your TV's audio settings and ensure the Digital Audio Output Format is set to PCM.

5. Operating Instructions

5.1. Power On/Off

• To Power On: Long press the power button on the headphones for approximately 3 seconds. The indicator light will illuminate.
• To Power Off: Long press the power button again for approximately 3 seconds. The indicator light will turn off.

5.2. Volume Control

The headphones feature 16 adjustable volume levels. Use the volume up (+) and volume down (-) buttons located on the earcup to adjust the listening volume to your preference.

5.3. Re-pairing (One-Button Reset)

If the headphones lose connection or fail to pair, simply turn the headphones off and then on again. The system is designed for an intuitive one-button reset to re-establish connection quickly.

6. Maintenance

6.1. Cleaning

• Wipe the headphones and transmitter with a soft, dry, lint-free cloth.
• Do not use abrasive cleaners, solvents, or chemical agents.
• Avoid getting moisture into any openings.

6.2. Storage

• Store the headphones in a cool, dry place away from direct sunlight and extreme temperatures.
• When not in use for extended periods, ensure the headphones are fully charged before storage to preserve battery health.

7. Troubleshooting

If you encounter issues with your Holdsound BKM400 headphones, please refer to the following common problems and solutions:

8. Specifications

9. Warranty and Support

Holdsound products are manufactured with high-quality standards. For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official Holdsound website. Please retain your proof of purchase for warranty claims.