Panasonic Lumix S5 Mirrorless Camera - Manual (Page 299)

11. Connections with External Devices (Video)
299
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Adjusting the Headphone Volume
Connect the headphones and rotate .
0 You can also adjust the volume by touching [ ]/[ ] on the playback screen.
To adjust the volume using the menu:
1 Select [Headphone Volume].
0 ¨ [ ] ¨ [ ] ¨ [Headphone Volume]
2 Press 34 to adjust the headphone volume and then press or
.
0 It can be adjusted in a range of [0] to [LEVEL15].
: Reduces the volume.
: Increases the volume.