Csasan J90 Pro Wireless Earbuds User Manual

Introduction

Thank you for choosing the Csasan J90 Pro Wireless Earbuds. These earbuds are designed to provide a superior audio experience with advanced features such as Bluetooth 5.3 connectivity, HiFi stereo sound, ENC noise cancellation, and IP7 waterproofing. This manual will guide you through the setup, operation, maintenance, and troubleshooting of your new earbuds.

Image: The Csasan J90 Pro Wireless Earbuds are shown in their open charging case. The case features a prominent LED display indicating "100" for the case battery level, along with individual battery indicators for the left (L) and right (R) earbuds. The earbuds themselves are white and fit snugly within their charging compartments.

Package Contents

Please check the package for the following items:

• 2 x Wireless Earbuds (Left and Right)
• 1 x Portable Charging Case
• 1 x USB-C Charging Cable
• 3 x Pairs of Ear Tips (S/M/L)
• 1 x User Manual

Setup

1. Initial Charging

Before first use, fully charge the earbuds and the charging case.

1. Connect the provided USB-C charging cable to the charging port on the case.
2. Connect the other end of the cable to a USB power adapter (not included) or a computer's USB port.
3. The dual LED display on the charging case will show the battery percentage of the case and the individual earbuds. Ensure both earbuds and the case are fully charged for optimal performance (up to 40 hours total playtime).

2. Pairing with Your Device (One-Step Pairing)

The J90 Pro earbuds feature advanced Bluetooth 5.3 technology for a stable and fast connection.

1. Open the charging case. The earbuds will automatically power on and enter pairing mode.
2. On your device (smartphone, tablet, laptop), enable Bluetooth.
3. Search for "J90 Pro" in the list of available Bluetooth devices and select it to connect.
4. Once connected, you will hear a confirmation tone, and the earbuds will be ready for use.
5. For subsequent uses, simply open the charging case, and the earbuds will automatically reconnect to the last paired device (Hall Technology).

Operating Instructions

Touch Controls

The J90 Pro earbuds feature intuitive touch controls for easy management of your audio and calls.

Audio Experience

• HiFi Stereo Sound: Equipped with 13mm dynamic coil drivers, the earbuds deliver clear, crisp, and balanced audio.
• ENC Noise Cancellation: The integrated high-quality ENC microphone effectively reduces ambient noise, ensuring clear voice transmission during calls, even in noisy environments.

Comfort and Fit

The J90 Pro earbuds are ergonomically designed for a secure and comfortable fit. Experiment with the three included sizes of ear tips (S/M/L) to find the best seal for your ears. A proper fit enhances sound quality and noise isolation.

Maintenance

• Cleaning: Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth. Do not use abrasive cleaners or solvents.
• Water Resistance: The earbuds are IP7 waterproof, meaning they are resistant to light rain and sweat. Do not submerge them in water or expose them to strong jets of water. Dry them thoroughly before placing them back in the charging case.
• Storage: When not in use, store the earbuds in their charging case to protect them and keep them charged. Store in a cool, dry place away from extreme temperatures.

Troubleshooting

If you encounter any issues with your J90 Pro earbuds, please refer to the following common solutions:

• Earbuds not pairing or connecting:
  • Ensure both earbuds are charged.
  • Turn off and on Bluetooth on your device.
  • Forget "J90 Pro" from your device's Bluetooth list and try pairing again.
  • Place earbuds back in the case, close the lid, wait a few seconds, then open to reset.
• No sound or low volume:
  • Check the volume level on both your device and the earbuds.
  • Ensure earbuds are properly seated in your ears.
  • Clean any debris from the earbud mesh.
• Charging issues:
  • Ensure the charging cable is securely connected to both the case and the power source.
  • Try a different USB-C cable or power adapter.
  • Clean the charging contacts on the earbuds and inside the case.
• Microphone not working:
  • Ensure the earbuds are connected and selected as the audio input device on your phone.
  • Check for any obstructions on the microphone ports.

Specifications

Warranty and Support

For warranty information and customer support, please refer to the documentation provided at the time of purchase or contact Csasan customer service through the retailer where you purchased the product.