Sony WIC400/L Reference guide

Help Guide

Wireless Stereo Headset

WI-C400

Use this manual if you encounter any problems, or have any questions.

This Help Guide is also available as a PDF, which can be downloaded here.

Getting started

What you can do with the BLUETOOTH function

About voice guidance

Supplied accessories

Checking the package contents

Replacing the earbuds

Adjusting the cable length

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 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 during playback.

BLUETOOTH

Pairing cannot be done.

Unable to connect the headset to a BLUETOOTH device with one-touch connection (NFC)

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.

No voice from callers

Low voice from callers

Resetting or initializing the headset

Resetting the headset

Initializing the headset to restore factory settings

Help Guide

Wireless Stereo Headset

WI-C400

What you can do with the BLUETOOTH function

The headset uses BLUETOOTH® wireless technology, allowing you to listen to music or make phone calls wirelessly.

Listening to music

You can receive audio signals from a smartphone or music player to enjoy music wirelessly.

Talking on the phone

You can make and receive a call with your hands free, while leaving your smartphone or mobile phone in your bag or

pocket.

Help Guide

Wireless Stereo Headset

WI-C400

About voice guidance

You hear voice guidance in the following situations via the headset.

When powering on: “Power on”

When powering off: “Power off”

When entering pairing mode: “BLUETOOTH pairing”

When establishing a BLUETOOTH connection: “BLUETOOTH connected”

When disconnecting a BLUETOOTH connection: “BLUETOOTH disconnected”

When checking the remaining battery charge: “Battery level high” / “Battery level medium” / “Battery level low”

When automatically turning off due to the low battery condition: “Please recharge headset”

When turning on the vibration function for receiving a call : “Vibration on”

When turning off the vibration function for receiving a call : “Vibration off”

Help Guide

Wireless Stereo Headset

WI-C400

Checking the package contents

After opening the package, check that all items in the list are included in the package. If items are missing, contact your

dealer.

Numbers in ( ) indicate the item amount.

Wireless Stereo Headset (1)

Micro-USB cable (approx. 50 cm (19 3/4 in.)) (1)

Hybrid silicone rubber earbuds (SS/S/M/L 2 each)

Size M earbuds come attached to the headset.

Reference Guide (1)

Operating Instructions (1)

Other documents (1 set) (*)

May not be supplied in some countries or regions.

Help Guide

Wireless Stereo Headset

WI-C400

Replacing the earbuds

The headset comes with the M size earbuds.

If the headset tends to come off or you feel a lack of low frequency sound, change the earbuds to another size to fit your

right and left ears comfortably and snugly.

A: SS size (one line)

B: S size (two lines)

C: M size (three lines)

D: L size (four lines)

Remove the earbuds.

Do not pinch the end of the earbud when removing it.

Attach the earbuds.

Do not attach the earbuds loose or skewed.

Help Guide

Wireless Stereo Headset

WI-C400

Adjusting the cable length

You can adjust the cable length by using the cable adjuster to fix the cable.

Slide the cable adjuster to fit the headset to your head.

You can put the right and left units on the headset body when you do not use the headset.

Put the stopper into a hole to fix the units.

Help Guide

Wireless Stereo Headset

WI-C400

Location and function of parts

left unit1.

Earbuds2.

right unit3.

Stopper4.

R mark5.

Cable adjuster

You can adjust the cable length by using this adjuster to fix the cable.

N-mark7.

Tactile dot

The left unit has a tactile dot.

L mark9.

Built-in antenna

A BLUETOOTH antenna is built into the headset.

10.

Indicator (blue/red)

Lights up in red during charging.

Lights up in red or blue to indicate the power or communication status of the headset.

11.

- ( ) / ( ) + buttons12.

Multi-function button

/ button

Controls various call and playback functions.

13.

(power) button14.

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