Toggle profiles of Bose35 headphones. When microphone is needed - use the "headset_head_unit", otherwise - use a2dp for high-quality audio.

toggle_bose35_profile.sh

#!/bin/sh

HEADPHONES_NAME='Bose'; # Replace with your unique (or not so) device name

INDEX=`pacmd list-cards | grep -B5 -P $HEADPHONES_NAME | head -1 | awk '{print $2}'`;

pacmd list-cards | grep "active profile: <a2dp_sink>"
TOGGLE=$?

if [ $TOGGLE -eq 0 ]; then
    pacmd set-card-profile $INDEX headset_head_unit
else
    pacmd set-card-profile $INDEX a2dp_sink
fi