Introduction
Thank you for choosing the Csasan J90 Pro Wireless Earbuds. These earbuds are designed to provide a stable and high-quality audio experience for various daily activities, including workouts, travel, and office use. Featuring Bluetooth 5.3 technology, Environmental Noise Cancellation (ENC), and an IP7 waterproof rating, the J90 Pro offers clear sound, reliable connectivity, and comfort for extended wear. This manual will guide you through the setup, operation, maintenance, and troubleshooting of your new earbuds.
What's in the Box
- J90 Pro Wireless Earbuds (x2)
- Charging Case (x1)
- Ear Caps (S/M/L, x3 pairs)
- USB-C Charging Cable (x1)
- User Manual (x1)
Product Overview
The Csasan J90 Pro Wireless Earbuds feature a compact design with intuitive controls and a portable charging case. Below are key components and features.
Image: The Csasan J90 Pro Wireless Earbuds in their charging case, displaying the LED battery indicator.
Image: Diagram illustrating the 13mm dynamic speaker components responsible for HiFi stereo sound, deep bass, and clear calls.
Image: A visual representation of the ENC noise reduction microphone system, indicating a 40dB reduction in environmental noise for clear calls.
Setup
1. Charging the Earbuds and Case
Before first use, fully charge the earbuds and charging case. Place the earbuds into the charging case. Connect the USB-C charging cable to the charging case and a power source. The dual LED display on the case will show the battery percentage of the case and individual earbuds (L/R).
- A full charge provides up to 8 hours of playback for the earbuds.
- The charging case provides an additional 32 hours, totaling 40 hours of continuous use.
- Charging time for the case is approximately 1.5 hours.
Image: The charging case with earbuds inside, showing the dual LED display for case and individual earbud battery levels.
2. Initial Pairing
The earbuds utilize Bluetooth 5.3 for a stable and reliable connection.
- Open the charging case. The earbuds will automatically power on and enter pairing mode.
- On your device (smartphone, tablet, laptop), go to Bluetooth settings.
- Search for available devices and select "J90 Pro" from the list.
- Once connected, you will hear a confirmation tone, and the earbuds will be ready for use.
After the initial pairing, the earbuds will automatically connect to the last paired device when the charging case is opened, provided Bluetooth is enabled on your device.
Image: A smartphone screen displaying the Bluetooth settings with "J90 Pro" listed as a connected device, next to the open charging case with earbuds.
Operating Instructions
The J90 Pro earbuds feature intuitive touch controls for managing audio playback, calls, and voice assistant functions.
Touch Controls
Image: A detailed diagram illustrating the touch control functions for both the left (L) and right (R) earbuds, including actions like tap, double tap, and press and hold.
| Action | Left Earbud (L) | Right Earbud (R) |
|---|---|---|
| Play/Pause | Tap Twice | Tap Twice |
| Next Track | Press and Hold 2s | Tap Once |
| Previous Track | Tap Once | Press and Hold 2s |
| Volume + | N/A | Tap Once |
| Volume - | Tap Once | N/A |
| Answer Call | Tap Once | Tap Once |
| Hang Up Call | Press and Hold 2s | Press and Hold 2s |
| Voice Assistant | Tap 3 Times | Tap 3 Times |
Using Single or Twin Modes
The earbuds can be used individually (Single Mode) or as a pair (Twin Modes) for stereo sound. Simply take one or both earbuds out of the case to activate the desired mode.
Image: Two scenarios demonstrating the use of earbuds: one person using a single earbud (Single Mode) and a couple sharing earbuds (Twin Modes).
Maintenance
Proper maintenance ensures the longevity and optimal performance of your earbuds.
Cleaning
- Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth.
- Remove ear tips and clean them with mild soap and water, then dry thoroughly before reattaching.
- Ensure charging contacts on both earbuds and case are free from dust and debris.
Water Resistance (IP7)
The earbuds are IP7 waterproof, meaning they are protected against immersion in water up to 1 meter for up to 30 minutes. They are resistant to sweat and rain, making them suitable for workouts and outdoor activities. However, the charging case is not waterproof. Do not expose the charging case to water.
Image: An earbud surrounded by splashing water, visually representing its IP7 waterproof capability.
Storage
When not in use, store the earbuds in their charging case to protect them and keep them charged. Avoid storing in extreme temperatures or humid environments.
Troubleshooting
If you encounter any issues with your earbuds, please refer to the following common solutions:
| Problem | Solution |
|---|---|
| Earbuds not pairing | Ensure earbuds are charged. Turn off and on your device's Bluetooth. Place earbuds back in case, close, then reopen to re-enter pairing mode. |
| Only one earbud working | Ensure both earbuds are charged. Place both earbuds back in the case, close, then reopen. Check Bluetooth settings to ensure both are connected. |
| No sound or low volume | Check device volume and earbud volume. Ensure earbuds are properly seated in your ears. Clean ear tips and speaker mesh. |
| Charging case not charging | Ensure USB-C cable is securely connected to both the case and power source. Try a different cable or power adapter. |
| Poor call quality | Ensure microphones are not obstructed. Move to an area with less environmental noise. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | J90 Pro |
| Connectivity Technology | Wireless (Bluetooth 5.3) |
| Wireless Communication Technology | Bluetooth |
| Noise Control | Environmental Noise Cancellation, Sound Isolation |
| Sensitivity | 13 Millimeters (Dynamic Drivers) |
| Headphones Jack | No Jack |
| Included Components | Ear caps x3 pairs (S/M/L), J90 Pro Wireless earbuds x2, USB-C charging cable x1, User Manual, Charging case x1 |
| Material | Plastic |
| Specific Uses for Product | Entertainment, Fitness, Travel |
| Charging Time | 1.5 Hours |
| Recommended Uses | Calling, Cycling, Exercising, Running, Office Meetings |
| Compatible Devices | Most Bluetooth enabled devices (iOS, Android) |
| Control Type | Touch Control |
| Item Weight | 40 Grams (total) |
| Water Resistance Level | IP7 Waterproof |
| Battery Average Life (Earbuds) | 8 Hours |
| Total Playtime with Case | 40 Hours |
| Battery Type | Lithium Polymer (included) |
| Maximum Operating Distance | 15 Meters |
| Product Dimensions | 3.5 x 2.35 x 0.75 cm (earbud); 62 x 48 x 25.7 mm (case) |
| Ear Placement | In Ear |
| Impedance | 32 Ohms |
Warranty and Support
Csasan is committed to providing high-quality products and excellent customer service. If you encounter any problems with your J90 Pro Wireless Earbuds, please contact our customer support team.
Quality Assurance
We stand by the quality of our products. If you experience any issues that cannot be resolved through standard troubleshooting, please reach out to us directly. We will work to resolve the problem in a timely manner and provide product warranty support to protect your rights and interests.
Contact Support
For any questions or assistance, please contact Csasan customer service. We aim to reply within 24 hours.
Product Videos
Product Overview Video
Video: A comprehensive overview of the Csasan J90 Pro Wireless Earbuds, highlighting key features and design.
Features and Benefits
Video: Demonstrates the various features and benefits of the J90 Pro earbuds, including sound quality and connectivity.
Usage Scenarios
Video: Shows the earbuds in different usage environments, such as during exercise, commuting, and relaxation.
Detailed Product Walkthrough
Video: A detailed walkthrough of the J90 Pro earbuds, covering all aspects from design to functionality.
Unboxing and First Impressions
Video: An unboxing experience and initial impressions of the Csasan J90 Pro Wireless Earbuds.
