Sony MDR-ZX220BT Help Manual page 15

9.
N-mark
10
+/-/ / buttons
11
. Multi-function button
. / / button
12
Micro-USB port
. Connect a computer to this port with the supplied micro-USB cable to charge the headset.
13
Microphone
. Picks up the sound of your voice when talking on the phone.
14
Indicator (blue/red)
.
Lights up in red during charging.
Lights up in red or blue to indicate the power or communication status of the headset.
Related Topic
About the indicator
Checking the remaining battery charge
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