Nokia HS-21W User Manual page 11

G e t t i n g s t a r t e d
Volume up (4): Increases the earphone volume during a
call.
Volume down (5): Decreases the earphone volume during
a call.
Earphone (6): Relays the caller's voice.
Microphone (7): Picks up your voice.
Charger connector (8)
Battery cover (9)
Before you can start using the headset, you must do the
following:
• Install and charge the battery.
• Pair a compatible phone with the headset.
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