Sony WF-SP900 Help Manual page 98

Transferred music content is limited to private use only. Use of music content for other purposes requires the permission of the
copyright holders.
Do not disconnect the charging case and the player from the computer while the lamps on the player are flashing. Otherwise,
data that is being transferred or stored on the player may become damaged. If the charging case and the player are disconnected
from the computer while files are transferring, unnecessary files may remain on the player. If the problem occurs, transfer usable
files back to the computer and reformat the player.
The use of a USB hub is only guaranteed when you use a self-powered USB hub that carries an authorized logo.
While the player is connected to a computer via the charging case, observe the following cautions. Otherwise, the player may not
function properly.
Do not turn on the computer.
Do not restart the computer.
Do not wake the computer from sleep mode.
Do not shut down the computer.
The contents of the Help Guide may be subject to change without notice due to updates to the product's specifications.
Related Topic
Installing Content Transfer (Mac)
Preparing music content
Playing music on the player
Supported formats
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