Sony MDR-MV1 Open-Back Reference Monitor Headphones - Manual (Page 75)

Supported profile: HSP (Headset Profile)
VOL (volume) –/+ dial
Increase the volume: Turn to the + side during a call.
Decrease the volume: Turn to the – side during a call.
(Bluetooth) button
Receive a call: Press once briefly during incoming call.
Finish a call: Press once briefly during a call.
Cancel an outgoing call: Press once briefly during outgoing call.
Related Topic
Receiving a call
Making a call
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