Csasan V90

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Csasan V90 Wireless Earbuds User Manual

Model: V90 | Brand: Csasan

Introduction

Thank you for choosing the Csasan V90 Wireless Earbuds. These Bluetooth 5.3 headphones are designed to provide a high-fidelity stereo sound experience with enhanced comfort and durability, making them ideal for sports and daily use. This manual will guide you through the setup, operation, and maintenance of your new earbuds to ensure optimal performance and longevity.

Package Contents

  • Csasan V90 Wireless Earbuds (Left and Right)
  • Charging Case
  • USB-C Charging Cable
  • Ear Tips (S/M/L sizes)
  • User Manual
Csasan V90 Wireless Earbuds and Charging Case in Pink

Image: The Csasan V90 Wireless Earbuds in pink, shown with their charging case. The case features an LED display indicating battery levels for both the case and individual earbuds.

Setup Guide

1. Charging the Earbuds and Case

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

  • Place the earbuds into the charging case. Ensure they are correctly seated.
  • Connect the USB-C charging cable to the charging port on the case and the other end to a USB power source (e.g., wall adapter, computer USB port).
  • The LED display on the charging case will show the charging status. A full charge takes approximately 1.5 hours.
Diagram showing Csasan V90 earbuds charging in their case with LED display indicating battery levels.

Image: A visual representation of the earbuds charging within their case. The diagram highlights the USB-C charging port and the dual LED display, which shows the battery percentage of the charging case and the charge status of each earbud.

2. Pairing with Your Device

The earbuds utilize Bluetooth 5.3 technology for a stable and fast connection.

  • Ensure the earbuds are charged.
  • Open the charging case. The earbuds will automatically power on and enter pairing mode.
  • On your device (smartphone, tablet, laptop), go to Bluetooth settings and turn Bluetooth on.
  • Search for "V90" in the list of available devices and select it to connect.
  • Once connected, you will hear a confirmation tone, and the earbuds will be ready for use.
  • For subsequent uses, simply open the charging case, and the earbuds will automatically reconnect to the last paired device within 2 seconds (Hall technology).
Diagram illustrating the auto-pairing process of Csasan V90 earbuds with a smartphone.

Image: This diagram demonstrates the automatic pairing feature. It shows the earbuds connecting to a smartphone simply by opening the charging case, indicating compatibility with iOS, Android, and Windows devices.

3. Wearing the Earbuds

For optimal sound quality and comfort, choose the correct ear tip size and adjust the earhooks.

  • Select the ear tips (S/M/L) that provide a snug and comfortable fit in your ear canal.
  • Place the earbud into your ear, then gently rotate it to ensure the earhook sits securely over your ear.
  • Adjust the earbud until you achieve a comfortable and stable fit.
Diagram showing ergonomic design of Csasan V90 earbuds with flexible ear hooks and different ear tip sizes.

Image: An illustration detailing the ergonomic design of the earbuds, emphasizing the comfortable fit and flexible ear hooks. It also displays the three available ear tip sizes (S, M, L) to ensure a secure fit for various ear shapes.

Operating Instructions

Smart Touch Controls

The Csasan V90 earbuds feature highly sensitive touch controls on each earbud for easy management of music and calls.

FunctionAction
Play/Pause MusicSingle tap on either earbud.
Next TrackDouble tap on the Right earbud.
Previous TrackDouble tap on the Left earbud.
Volume UpTriple tap on the Right earbud.
Volume DownTriple tap on the Left earbud.
Answer/End CallSingle tap on either earbud during an incoming call.
Reject CallPress and hold on either earbud for 2 seconds during an incoming call.
Activate Voice AssistantPress and hold on either earbud for 3 seconds.
Illustration of smart touch controls on Csasan V90 earbuds.

Image: A visual guide to the smart touch controls on the earbuds, showing icons for Play/Pause, Previous/Next track, Volume Control, Answer Call, Hang Up, and Voice Assistant.

Sound Quality and Noise Cancellation

The earbuds are equipped with a 14.2mm diaphragm speaker driver for a powerful and wide sound range, delivering crisp sound and deep bass. The integrated ENC (Environmental Noise Cancellation) technology with 4 microphones helps suppress ambient noise during calls, ensuring clear communication.

Exploded view diagram of Csasan V90 earbud components highlighting Bluetooth 5.3 and Hi-Fi Stereo Sound.

Image: An exploded diagram illustrating the internal components of the earbud, emphasizing the 13mm drivers, Bluetooth 5.3 chip, and bass enhancement for Hi-Fi Stereo Sound.

Woman wearing Csasan V90 earbuds, illustrating CVC 8.0 Noise Cancellation.

Image: A woman wearing the earbuds, with a graphic overlay suggesting CVC 8.0 Noise Cancellation, indicating effective noise reduction for calls and listening.

Maintenance

Proper maintenance ensures the longevity and performance of your earbuds.

  • Cleaning: Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth. Do not use abrasive cleaners or solvents.
  • Ear Tips: Remove ear tips periodically and clean them with mild soap and water. Ensure they are completely dry before reattaching.
  • Water Resistance: The earbuds have an IP7 waterproof rating, protecting them from sweat and rain. However, they are not designed for swimming or submersion in water. Always ensure the charging port is dry before charging.
  • 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

ProblemPossible Solution
Earbuds not pairing/connecting.
  • Ensure earbuds are charged.
  • Make sure Bluetooth is enabled on your device.
  • Place earbuds back in the case, close, then open again to re-enter pairing mode.
  • Forget "V90" from your device's Bluetooth list and try pairing again.
  • Ensure no other Bluetooth devices are interfering.
Only one earbud working.
  • Ensure both earbuds are charged.
  • Place both earbuds back in the charging case, close the lid, wait a few seconds, then open the lid again.
  • Try resetting the earbuds (refer to manufacturer's website if specific reset steps are not in manual).
Low volume or poor sound quality.
  • Adjust volume on both your device and the earbuds.
  • Ensure ear tips provide a good seal in your ear canal.
  • Clean any debris from the earbud speakers.
  • Ensure the earbuds are within the 15-meter Bluetooth range of your device.
Charging case not charging.
  • Check the USB-C cable and power adapter for damage.
  • Try a different USB-C cable or power source.
  • Ensure the charging port on the case is clean and free of debris.

Specifications

FeatureDetail
Model NameV90
BrandCsasan
Connectivity TechnologyWireless (Bluetooth 5.3)
Wireless Communication TechnologyBluetooth
Noise ControlPassive Noise Cancellation (ENC for Mics)
Ear PlacementOver Ear
Form FactorIn Ear
Water Resistance LevelIP7 Waterproof
Control TypeTouch Control
Battery Life (Earbuds)Up to 8 Hours (single charge)
Total Playtime (with Charging Case)Up to 48 Hours
Charging TimeApprox. 1.5 Hours (for case)
Battery Cell CompositionLithium Polymer
Frequency Range20 Hz - 20,000 Hz
Impedance0.05 Ohm
Compatible DevicesSmartphones, Tablets, Laptops, Bluetooth-enabled Devices
ManufacturerShenzhen moldull Acoustic Technology Co.,Ltd

Warranty and Support

Your Csasan V90 Wireless Earbuds come with a 2-year warranty from the date of purchase, covering manufacturing defects.

For any questions, technical support, or warranty claims, please contact Csasan customer service. We aim to provide a 24-hour customer service response.

Contact information can typically be found on the product packaging or the official Csasan website.

Manufacturer Contact: +86-156-9209-9166

© 2025 Csasan. All rights reserved.

This manual is for informational purposes only. Specifications are subject to change without notice.

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