Sony MDR-XB950BT Quick Start Manual page 55

Help Guide
How to Use
Wireless Stereo Headset
MDR-XB950BT
Available operating time
The available operating time of the headset on fully-charged battery are as follows:
Music playback time: Max. 20 hours (SBC/AAC)/Max. 20 hours (aptX)
Communication time: Max. 20 hours
Standby time: Max. 200 hours
About 7 hours of continuous communications is possible after 1 hour charging.
Note
Usage hours may be shorter depending on the Codec and the conditions of use.
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