Britax Safe-nSound Instructions For Installation And Use Manual page 14

HOW TO SETUP
HOW TO ADJUST HEADREST & HASSLE FREE HARNESS™
A. Loosen the harness straps before adjusting the headrest.
B. You do not need to remove the restraint from the vehicle to adjust the harness or headrest
positions. Small adjustments may be possible with the child still in the seat.
C. To adjust the headrest, pull on the latch on the back of the restraint and pull up or down to position
the top of the shoulder strap slot above the child's shoulders. Release the latch to lock the headrest
in position. Pull headrest upwards to check it is locked in position.
(Harness straps not shown for image clarity)
IMPORTANT :
Ensure harness and headrest are positioned so that the shoulder straps are just above
the child's shoulders but no lower.
14
Latch
Pull