Sony WH-CH520 Wireless Headphones User Manual

Sony WH-CH520 Wireless Headphones

Table of Contents

Getting Started

What you can do with the Bluetooth function

The headset uses Bluetooth wireless technology, allowing you to do the following.

Listening to music
You can enjoy music wirelessly from a smartphone or music player, etc.
Talking on the phone
You can make and receive calls hands-free while leaving your smartphone or mobile phone in your bag or pocket.

About the voice guidance

In the factory settings, you will hear the English voice guidance in the following situations via the headset. You can change the language of the voice guidance and turn on/off the voice guidance using “ Sony | HeadphonesConnect ” app. For more details, refer to the “ Sony | Headphones Connect ” app help guide.

When entering pairing mode: “Pairing”
When informing the remaining battery charge: “Battery about XX %” (The “XX” value indicates the approximate remaining charge. Use it as a rough estimate.) / “Battery fully charged”
When the remaining battery charge is low: “Low battery”
When automatically turning off due to low battery: “Battery is empty”

Note

It takes about 4 minutes when you change the language of the voice guidance.
If the voice guidance is not heard after changing the voice guidance language or updating the software, turn the headset off and on again.

Supplied accessories

Checking the package contents

After opening the package, check that all of the items in the list are included. If any items are missing, contact your dealer. Numbers in ( ) indicate the item amount. Wireless Stereo Headset
USB Type-C® cable (USB-A to USB-C®) (approx. 20 cm [7.88 in.]) (1)

Location and function of parts

Headband
(left) mark
Left unit
Tactile dot
There is a tactile dot on the left unit.
Sliders (left, right)
Slide it to adjust the length of the headband.
(right) Mark
Right unit
+(volume +)/ (next) button
There is a tactile dot on the + button. Use this dot as a guide when operating the headset.
(play/call)/ (power)/ ( Bluetooth ) button
– (volume –)/ (previous) button
Indicator (blue/orange)
Lights up in blue or orange to indicate the power or communication status of the headset.
USB Type-C port
Connect the headset to a computer, or to an AC outlet via a commercially available USB AC adaptor, with thesupplied USB Type-C cable to charge the headset.
Microphone
Built-in antenna
A Bluetooth antenna is built into the headset.

Wearing the headset

Put the headset on your head.

Check the left and right units of the headset. There is a tactile dot on the (left) mark side.A: Tactile dot
Extend the slider.
Extend the slider to its full length before putting on the headset.
Put on the headset.
Put on the headset with each earpad fitting snugly over each part of your ear.
Adjust the length of the slider.
Adjust the slider to a length where the headband touches the top of your head.
Adjust the orientation of the units.
Adjust the orientation of the left and right units so that each earpad fits snugly over each part of your ear.If you put on the headset without adjusting the slider, the headset may not be positioned properly on your head, resulting in discomfort.

Charging the headset

The headset contains a built-in lithium-ion rechargeable battery. Use the supplied USB Type-C cable to charge the headset before use.

Connect the headset to an AC outlet

Use the supplied USB Type-C cable and a commercially available USB AC adaptor.A: USB AC adaptor

The indicator (orange) on the headset lights up.
Charging is completed in about 3 hours *, and the indicator turns off automatically.
* Time required for charging the empty battery to its full capacity. The charging time may differ depending on the conditions of use.

After charging is complete, disconnect the USB Type-C cable.

System requirements for battery charging using USB

USB AC adaptor

A commercially available USB AC adaptor capable of supplying an output current of 0.5 A (500 mA) or more

Personal computer

Personal computer with a standard USB port

We do not guarantee operation on all computers.
Operations using a custom-built or homebuilt computer are not guaranteed.

Hint

The headset can be also charged by connecting the headset to a running computer using the supplied USB Type-C cable.
If charging starts while the headset is on, the headset will turn off automatically.

Note

Charging may not be successful with cables other than the supplied USB Type-C cable.
Charging may not be successful depending on the type of USB AC adaptor.
When the headset is connected to an AC outlet or computer, all operations such as turning on the headset, registering orconnecting to Bluetooth devices, and music playback cannot be performed.
The headset cannot be charged when the computer goes into standby (sleep) or hibernation mode. In this case, change thecomputer settings, and start charging once again.
If the headset is not used for a long time, the rechargeable battery usage hours may be reduced. However, the battery life willimprove after charging and discharging several times. If you store the headset for a long time, charge the battery once every 6months to avoid over-discharge.
If the headset is not used for a long time, it may take longer to charge the battery.
If the headset detects a problem while charging due to the following causes, the indicator (orange) flashes. In this case, chargeonce again within the charging temperature range. If the problem persists, consult your nearest Sony dealer.
- Ambient temperature exceeds the charging temperature range of 5 °C – 35 °C (41 °F – 95 °F).
- There is a problem with the rechargeable battery.
If the headset is not used for a long time, the indicator (orange) may not immediately light up when the headset starts charging.Please wait a moment until the indicator lights up.
If the usage hours of the built-in rechargeable battery decrease significantly, the battery should be replaced. Consult your nearestSony dealer.
Avoid exposure to extreme temperature changes, direct sunlight, moisture, sand, dust, and electrical shock. Never leave theheadset in a parked vehicle.
When connecting the headset to a computer, use only the supplied USB Type-C cable, and make sure to connect them directly.Charging will not be properly completed when the headset is connected through a USB hub.

Available operating time

The available operating times of the headset with the battery fully charged are as follows:

Bluetooth connection

Music playback time ( AAC ): Max. 50 hours
Music playback time ( SBC ): Max. 45 hours
About 1.5 hours of music playback is possible after 3 minutes of charging. About 5.5 hours of music playback is possible after 10 minutes charging as well.
Communication time: Max. 40 hours

Hint

By using the “ Sony | Headphones Connect ” app, you can check which codec is used for a connection or switch the DSEE ™function.

Note

Usage hours may be different from the time described above, depending on the settings for the headset functions and usage conditions.
If you set the following functions, the available operating time of the battery becomes shorter than the ones described above.
- Equalizer
- DSEE
If you run the above settings at the same time, the available operating time of the battery becomes even shorter.

Check the remaining battery charge

You can check the remaining battery charge of the rechargeable battery by the following way.

When you turn on the headset, the voice guidance indicating the remaining battery charge can be heard.
“Battery about XX %” (The “XX” value indicates the approximate remaining charge.)
“Battery fully charged”
The remaining battery charge indicated by the voice guidance may differ from the actual remaining charge in some cases. Use it as a rough estimate.
The indicator (orange) also flashes for about 15 seconds if the remaining battery charge is 20% or lower when the headset is turned on.

When the remaining charge becomes low/ When you are using an iPhone or iPod touch

When the headset is connected to an iPhone or iPod touch over an HFP ( Hands-free Profile ) Bluetooth connection, it will show an icon that indicates the remaining battery charge of the headset on the screen of the iPhone or iPod touch.
The display position is an example.

A: Remaining battery charge of the headset
B: 100% – 70%
C: 70% – 50%
D: 50% – 20%
E: 20% or lower (requires charging)

The remaining battery charge of the headset is also displayed on the widget of an iPhone or iPod touch running iOS 11 or later.
For more details, refer to the operating instructions supplied with the iPhone or iPod Touch. The remaining charge that is displayed may differ from the actual remaining charge in some cases. Use it as a rough estimate.

When you are using an Android ™ smartphone (OS 8.1 or later)

When the headset is connected to an Android smartphone via HFP Bluetooth connection, select [Settings] – [Device connection] – [Bluetooth] to display the remaining battery charge of the headset as “100%”, “70%”, “50%” or “20%” in the connected Bluetooth device column. The operation above is an example. For details, refer to the operating instructions of the Android smartphone. The remaining charge that is displayed may differ from the actual remaining charge in some cases. Use it as a rough estimate.

Hint

You can also check the remaining battery charge of the headset with the “Sony | Headphones Connect” app. Android smartphones and iPhone/iPod touch both support this app.

Note

If the headset and smartphone are not connected with HFP, the remaining battery charge will not be correctly displayed.
If you connect the headset to an iPhone/iPod touch or Android smartphone with “Media audio” (A2DP) only in a multipoint connection, the remaining battery charge will not be displayed correctly.
The remaining battery charge may not be properly displayed immediately after a software update or if the headset has not been used for a long time. In this case, repeatedly charge and discharge the battery multiple times to properly display the remaining battery charge.

Turning on the headset

Press and hold the (power) button for about 2 seconds or more until the indicator (blue) flashes.

Turning off the headset

Press and hold the (power) button for about 2 seconds or more until the indicator (blue) turns off.

Hint

You can also turn off the headset with the “ Sony | Headphones Connect ” app.

How to make a wireless connection to Bluetooth devices

You can enjoy music and hands-free calling with the headset wirelessly by using your Bluetooth device’s Bluetooth function.

Pairing

To use the Bluetooth function, both of the connecting devices must be registered in advance. The operation to register a device is called “pairing”. Pair the headset and the device manually.

Connecting to a paired device

Once a device is paired, it is not necessary to pair it again. Connect to devices already paired with the headset using the methods necessary for each device.

Connecting with the “Sony | Headphones Connect” app

Launch the “Sony | Headphones Connect” app on your Android smartphone/iPhone to connect the headset to a smartphone or iPhone. For more details, refer to the “Sony | Headphones Connect” app help guide.

Note

The connection with some smartphones and iPhone devices may become unstable when connecting using the “ Sony |Headphones Connect ” app. In that case, follow the procedures in “ Connecting to a paired Android smartphone ” or “Connecting to a paired iPhone ” to connect to the headset.

Pairing and connecting with an Android smartphone

The operation to register the device that you wish to connect to is called “pairing”. First, pair a device to use it with the headset for the first time.

Before starting the operation, make sure of the following:

The Android smartphone is placed within 1 m (3.2 ft) of the headset.
The headset is charged sufficiently.
The operating instructions of the Android smartphone are in hand.

Enter pairing mode on this headset.
- Turn on the headset when you pair the headset with a device for the first time after you bought it or after you initialized the headset (the headset has no pairing information). The headset enters pairing mode automatically. In this case, proceed to step 2.
- When you pair a second or subsequent device (the headset already has pairing information for other devices), press and hold the (Bluetooth) button for about 5 seconds or more to enter pairing mode manually.
- The indicator (blue) repeatedly flashes twice in a row. You will hear the voice guidance say, “Pairing.”
Unlock the screen of the Android smartphone if it is locked.
Find the headset on the Android smartphone.
1. Select [Settings] – [Device connection] – [Bluetooth].
2. Touch the switch to turn on the Bluetooth function.
Touch [ WH-CH520 ].If a Passkey* input is required, input “0000”. The headset and smartphone are paired and connected with each other. You will hear a notification sound indicating that the connection is established. If they are not connected, see “Connecting to a paired Android smartphone”. If [WH-CH520] does not appear on your Android smartphone screen, try again from the beginning of step 3 . * A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”.

Hint

The operation above is an example. For more details, refer to the operating instructions supplied with the Android smartphone.
To delete all Bluetooth pairing information, see “Initializing the headset to restore factory settings”.

Note

If pairing is not established within 5 minutes, pairing mode is canceled, and the headset turns off. In this case, start the operation again from step 1.
Once Bluetooth devices are paired, there is no need to pair them again, except in the following cases:
- Pairing information has been deleted after repair, etc.
- When a 9th device is paired. The headset can be paired with up to 8 devices. If a new device is paired after 8 devices are already paired, the registration information of the paired device with the oldest connection date is overwritten with the information for the new device.
- When the pairing information for the headset has been deleted from the Bluetooth device. When the headset is initialized.
- All of the pairing information is deleted. In this case, delete the pairing information for the headset from the connected device and then pair them again.
The headset can be paired with multiple devices but can only play music from 1 paired device at a time.

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Sony WH-CH520 Wireless Headphones User Manual