Help Guide
Wireless Stereo Headset
WH-CH400
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Distorted sound
Keep the headset away from a microwave oven,
Wi-Fi
device, etc.
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Getting started
What you can do with the
Bluetooth
function
About voice guidance
Supplied accessories
Checking the package contents
Parts and controls
Location and function of parts
About the indicator
Power/Charging
Charging the headset
Available operating time
Checking the remaining battery charge
System requirements for battery charge using
USB
Turning on the headset
Turning off the headset
Making connections
How to make a wireless connection to
Bluetooth
devices
One-touch connection (NFC) compatible Android devices
One-touch connection (
NFC
) with a smartphone (
Android 4.1
or later)
Disconnecting the smartphone by one touch (
NFC
)
Switching the device by one touch (
NFC
)
Android devices not compatible with one-touch connection (NFC)
Pairing and connecting with an
Android
smartphone
Connecting to a paired
Android
smartphone
iPhone (iOS devices)
Pairing and connecting with an
iPhone
Connecting to a paired
iPhone
Computers
Pairing and connecting with a computer (
Windows
10)
Pairing and connecting with a computer (
Windows 8/Windows 8.1
)
Pairing and connecting with a computer (
Windows 7
)
Connecting to a paired computer (
Windows 10
)
Connecting to a paired computer (
Windows 8
/
Windows 8.1
)
Connecting to a paired computer (
Windows 7
)
Other Bluetooth devices
Pairing and connecting with other
Bluetooth
devices
Connecting to a paired
Bluetooth
device
Disconnecting
Bluetooth
connection (after use)
Listening to music
Listening to music via a Bluetooth connection
Listening to music from a device via
Bluetooth
connection
Controlling the audio device (
Bluetooth
connection)
Disconnecting
Bluetooth
connection (after use)
Supported codecs
Making phone calls
Receiving a call
Making a call
Functions for a phone call
Disconnecting
Bluetooth
connection (after use)
Using the voice assist function
Using the voice assist function (
Google app
)
Using the voice assist function (
Siri
)
Important information
Precautions
Trademarks
Customer support websites
Troubleshooting
What can I do to solve a problem?
Power/Charging
The headset is not turned on.
Charging cannot be done.
Charging time is too long.
The headset cannot be recognized by a computer.
The remaining battery charge of the headset is not displayed on the screen of an
iPhone
or
iPod touch
.
Sound
No sound
Low sound level
Low sound quality
Sound skips frequently.
Bluetooth
Pairing cannot be done.
One-touch connection (
NFC
) does nor work
Unable to make a
Bluetooth
connection
Distorted sound
The
Bluetooth
wireless communication range is short, or the sound skips.
The headset does not operate properly
Cannot hear a person on a call.
Low voice from callers
Resetting or initializing the headset
Resetting the headset
Initializing the headset to restore factory settings
