WHCH520/B Quick Start Guide

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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 or

connecting 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 the

computer 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 will

improve after charging and discharging several times. If you store the headset for a long time, charge the battery once every 6

months 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, charge

once 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 nearest

Sony dealer.

Avoid exposure to extreme temperature changes, direct sunlight, moisture, sand, dust, and electrical shock. Never leave the

headset 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.

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Sony WHCH520/B Black Wireless On-Ear Headphones with Microphone WHCH520B