cheero CHE-647

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cheero Wireless Open Earphones Smart Pro

Model: CHE-647 User Manual

Introduction

Thank you for purchasing the cheero Wireless Open Earphones Smart Pro. These open-ear earphones are designed for comfort and situational awareness, allowing you to enjoy audio while remaining connected to your surroundings. Featuring a high-quality chip, 12mm drivers, Bluetooth 6.0, IP65 dust and water resistance, and multipoint connectivity, these earphones offer a versatile audio experience. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure optimal performance.

Product Overview

Familiarize yourself with the components of your cheero Wireless Open Earphones Smart Pro and their charging case.

Diagram showing the components of the cheero Wireless Open Earphones Smart Pro and its charging case.

Image: Earphone and Charging Case Components. This diagram illustrates the various parts of the earphones, including the head, balance port, bridge (joint), body, multi-function button, voice output, multi-indicator/microphone, and charging terminal. The charging case shows the USB-C input port and battery indicator.

Setup

Follow these steps for initial setup and pairing of your earphones.

  1. Charge the Earphones: Before first use, ensure the earphones and charging case are fully charged. Place the earphones in the charging case and connect the case to a power source using the provided USB-C cable.
  2. Remove from Case: Open the charging case and remove both earphones. They will automatically enter pairing mode.
  3. Pair with Device: On your smartphone or other Bluetooth-enabled device, go to the Bluetooth settings and select "CHE-647" from the list of available devices to connect.
  4. Wearing the Earphones: The earphones are designed to be worn like an ear cuff. Gently place them over your ears, ensuring a comfortable and secure fit without blocking your ear canal.
Woman wearing the cheero Wireless Open Earphones Smart Pro, showing the open-ear design.

Image: Proper Wearing of Earphones. This image demonstrates how to comfortably wear the open-ear earphones, allowing ambient sounds to be heard.

Video: Quick Start Guide. This video demonstrates the initial setup process, including removing earphones from the case, wearing them, and connecting via Bluetooth. It also shows the reset and cleaning methods.

Operating Instructions

The earphones feature physical buttons for reliable control.

Diagram showing button controls for left and right earphones.

Image: Earphone Button Controls. This diagram details the functions of the physical buttons on both the left (L) and right (R) earphones. A single click plays/pauses audio, a double click on the right earphone skips to the next track, and on the left earphone returns to the beginning of the current track (or previous track if within 3 seconds). A triple click activates the voice assistant (Siri, etc.). A long press on the right earphone increases volume, and on the left earphone decreases volume.

  • Play/Pause: Single click on either earphone button.
  • Next Track (R): Double click the right earphone button.
  • Previous Track / Start of Track (L): Double click the left earphone button. (Returns to start of current track if within 3 seconds, otherwise previous track).
  • Volume Up (R): Long press the right earphone button.
  • Volume Down (L): Long press the left earphone button.
  • Voice Assistant: Triple click on either earphone button to activate Siri or other voice assistants.
  • Answering/Ending Calls: Single click on either earphone button during an incoming call to answer, or during a call to end.
  • Rejecting Calls: Long press on either earphone button during an incoming call.
  • Multipoint Connection: The earphones support simultaneous connection to multiple devices (e.g., smartphone and PC). To switch between devices, pause audio on the currently playing device and start playback on the other.

Maintenance

Proper care ensures the longevity of your earphones.

  • Cleaning: Regularly wipe the earphones and charging terminals with a soft, dry cloth. If sweat adheres, wipe it promptly as salt can cause damage.
  • Water Resistance (IP65): The earphones are IP65 dust and water resistant, protecting them from rain and splashes. However, they are not designed for prolonged immersion in water. The charging case is not water resistant.
  • Storage: Store the earphones in their charging case when not in use to protect them and keep them charged.

Video: Cleaning Method. This video demonstrates how to clean the charging terminals of the earphones using the included cleaning cloth.

Troubleshooting

If you encounter issues, try these solutions:

  • No Sound/Connection Issues:
    1. Ensure earphones are charged.
    2. Check if Bluetooth is enabled on your device and the earphones are paired.
    3. Try resetting the earphones as described below.
  • Earphone Reset Procedure:
    1. On your device, unpair or forget "CHE-647" from the Bluetooth settings.
    2. Remove one earphone from the charging case. Click its button 3 times until the indicator light turns off.
    3. Repeat step 2 for the other earphone.
    4. Place both earphones back into the charging case.
    5. Remove both earphones simultaneously. They will flash red and blue (one side) indicating pairing mode.
    6. Reconnect to "CHE-647" from your device's Bluetooth settings.

Video: Reset Method. This video demonstrates the steps to reset the earphones, including unpairing from your device and performing the button sequence on each earphone.

Specifications

Model NameWireless Earphones Smart Pro
Connectivity TechnologyWireless
Wireless Communication TechnologyBluetooth
Included ComponentsCable
Number of Items1
Battery RequiredYes
Manufacturercheero
Manufacturer Model NumberCHE-647
Package Dimensions15.8 x 9.8 x 5.3 cm; 120 g
Product Model NumberCHE-647
ASINB0FVLSFMYW
First Available Date on Amazon.co.jp2025/10/10
Brandcheero
ColorWhite
Ear PlacementOpen-Ear
Headphone Form FactorTrue Wireless
Noise ControlNone

Safety Information

  • Do not disassemble, repair, or modify the product.
  • Avoid exposing the product to extreme temperatures, direct sunlight, or high humidity.
  • Keep out of reach of children and pets.
  • Use only the provided charging cable or a certified equivalent.
  • Do not use the earphones at excessively high volumes for extended periods to prevent hearing damage.
  • Be aware of your surroundings when using the earphones, especially in traffic or other potentially dangerous situations.

Warranty and Support

This product complies with technical standards stipulated by radio laws and has acquired technical conformity certification (Certification number: 222-258045), ensuring safe and secure use.

For warranty information or further support, please refer to the documentation included with your purchase or visit the official cheero website.

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