Panasonic KX-NT321-B Quick Reference Manual page 12

Stand Usage
Adjusting from High to Low Position
Hold the stand with both hands as shown and rotate the stand in the
direction indicated until it locks into the low position (
Adjusting from Low to High Position
Hold the stand with both hands as shown and rotate the stand in the
direction indicated until it locks into the high position (
12
1
1
B
A
).
B
).
A