Kashimura BL-139 Open-Ear Wireless Earphones User Manual

1. Introduction

Thank you for purchasing the Kashimura BL-139 Open-Ear Wireless Earphones. This manual provides essential information for the safe and effective use of your device. Please read it thoroughly before use and keep it for future reference.

These open-ear earphones are designed to clip comfortably to your ear, allowing you to enjoy audio while remaining aware of your surroundings. They feature Bluetooth 5.4 connectivity, AAC codec support for high-quality audio, and a built-in microphone for hands-free calls.

Image: The Kashimura BL-139 earphones and charging case, highlighting features like automatic connection, Bluetooth Ver. 5.4, call function, and ear cuff design.

2. Product Overview

Package Contents

• Kashimura BL-139 Earphone Main Unit (Left and Right)
• Charging Case
• USB-A to Type-C Charging Cable
• User Manual (this document)

Key Features

• Open-Ear Design: Clips to the ear, allowing ambient sounds to be heard.
• Bluetooth Ver. 5.4: For stable and efficient wireless connection.
• AAC Codec Support: Enables high-quality audio playback.
• Built-in Microphone: Supports hands-free calling.
• Touch Controls: For easy operation of music and calls.
• Automatic Connection: Earphones connect automatically to paired devices when removed from the case.
• Long Playback Time: Up to 4.5 hours on a single charge, with an additional 8.5 hours from the charging case.

Image: A woman wearing the earphones, demonstrating the stress-free fit and ability to hear ambient sounds. The speaker design is highlighted as reducing sound leakage, though not completely preventing it.

3. Setup

3.1 Charging the Earphones and Case

1. Place both earphones into the charging case. Ensure they are correctly seated.
2. Connect the provided USB-A to Type-C cable to the charging port on the case and to a USB power source (e.g., computer, USB wall adapter).
3. The LED indicator on the charging case will show the charging status. A full charge for both earphones and the case takes approximately 1.5 hours.

Image: The earphones and charging case, illustrating the automatic connection process with a smartphone and indicating a charging time of approximately 1.5 hours for both the earphones and the case.

3.2 Pairing with a Device

1. Ensure the earphones are charged.
2. Open the charging case. The earphones will automatically enter pairing mode (or power on if already paired).
3. On your smartphone or Bluetooth-enabled device, go to the Bluetooth settings.
4. Search for available devices and select "BL-139" from the list.
5. Once connected, the earphones will indicate successful pairing (e.g., an LED indicator change or an audio prompt).
6. For subsequent uses, the earphones will automatically connect to the last paired device when removed from the case.

4. Operating Instructions

4.1 Wearing the Earphones

Gently clip each earphone onto your earlobe. Adjust for a comfortable and secure fit. The open-ear design ensures that your ear canal remains unobstructed.

4.2 Touch Controls

The earphones feature touch-sensitive areas for control. Specific functions may vary slightly depending on your device and application.

4.3 Making and Receiving Calls

• Answering a Call: When a call comes in, single tap either earphone.
• Ending a Call: During a call, single tap either earphone.
• Rejecting a Call: When a call comes in, long press either earphone.
• Making a Call: Initiate a call from your connected device. The audio will automatically route to the earphones.

5. Maintenance

• Cleaning: Use a soft, dry cloth to wipe the earphones and charging case. Do not use abrasive cleaners or immerse in water.
• Storage: When not in use, store the earphones in their charging case to protect them and keep them charged. Store in a cool, dry place away from direct sunlight and extreme temperatures.
• Battery Care: To prolong battery life, avoid fully discharging the earphones frequently. Charge them regularly, even if not used for extended periods.

6. Troubleshooting

Common Issues and Solutions

• No Sound:
  • Ensure earphones are charged and powered on.
  • Check Bluetooth connection on your device. Re-pair if necessary.
  • Adjust volume on both the earphones and your connected device.
• Earphones Not Pairing:
  • Ensure earphones are in pairing mode (removed from case).
  • Turn off and on Bluetooth on your device.
  • Forget/delete "BL-139" from your device's Bluetooth list and try pairing again.
  • Ensure no other devices are connected to the earphones.
• Poor Sound Quality/Intermittent Connection:
  • Move closer to your connected device (within 10 meters/33 feet).
  • Avoid obstacles between the earphones and your device.
  • Ensure there is no interference from other wireless devices.
  • Check for any firmware updates for your connected device.
• Earphones Not Charging:
  • Ensure the charging cable is securely connected to both the case and the power source.
  • Try a different USB port or power adapter.
  • Clean the charging contacts on the earphones and inside the case with a dry cotton swab.

7. Specifications

Note: Playback times are approximate and may vary based on volume level and usage conditions.

Image: The earphones and charging case illustrating the individual and combined battery life for music playback.

Image: Detailed dimensions and weights for both the earphones and the charging case.

8. Warranty Information

Kashimura products are covered by a standard manufacturer's warranty against defects in materials and workmanship. The warranty period typically begins from the date of purchase. Please retain your proof of purchase for warranty claims.

For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Kashimura website.

9. Support

If you encounter any issues or have questions not covered in this manual, please contact Kashimura customer support.

• Online Support: Visit the official Kashimura website for FAQs, support resources, and contact forms.
• Email Support: Refer to the contact information provided on the product packaging or official website.

When contacting support, please have your product model number (BL-139) and proof of purchase ready.