Sony WF-SP900 Help Manual page 121

Heat may build up in the player in the following situations, but this is not a malfunction. However, be careful because
there is a risk of low-temperature burns.
While the battery is charging.
While the player is playing for an extended period of time.
Be careful when you use the leash cord. If the leash cord gets caught, you may become injured.
Store the player inside the charging case after use, and keep the player out of the reach of children. Otherwise,
children may swallow the small parts (earbuds, arc supporters, etc.).
Remove any moisture from the terminals and surface of the player with a soft, dry cloth. Then, store the player inside
the charging case. The charging case is not water resistant. If you store the player when it is wet, the charging case
may malfunction.
Content that you record is for personal use only. Under copyright law, the content cannot be used without the
permission of the copyright holder.
Notes on communication between the 2 units
If you do not put the player properly on your ears, the quality of communication between the 2 units may degrade.
Replace the earpieces or arc supporters with the appropriate size for each ear. Then, put the player on your ears
securely.
Electromagnetic noise may interrupt the connection between the 2 units in some environments (near household
appliances, security gates, etc.).
The contents of the Help Guide may be subject to change without notice due to updates to the product's specifications.
4-740-674-12(1) Copyright 2018 Sony Corporation
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