Huawei AM-R1 User Manual page 4

During call:
To end the call, press the function button.

To switch between the phone and the headphones, press and hold
the function button for 2 to 4 seconds.
To increase the volume, press the volume up button.

To decrease the volume, press the volume down button.

When there is a new incoming call during a call:
To end the current call and answer the new call, press the function

button.
To hold the current call and answer the new call, double-press the

function button.
To reject the new call, press and hold the function button for 2 to 4

seconds.
To cancel a call, press the function button.

To call back the last outgoing call, double-press the function

button when your headphones are paired with your phone over
Bluetooth.
Actual operations may vary by phone brand and specification. Please
consult Huawei after-sales personnel for more information.
Music playback
To play or resume playback, press the function button when the

Bluetooth connection is on standby or music is paused.
During playback:

To pause playback, press the function button.
To increase the volume, press the volume up button.
To decrease the volume, press the volume down button.
To skip to the next track, double-press the function button.
To return to the previous track, triple-press the function button.
When you receive an incoming call during music playback, the

music pauses automatically. To answer the call, press the function
button. To end the call and resume playback, press the function
button again.
To help ensure music playback quality and connectivity, keep the
headphones close to your phone with as few obstacles as possible.
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