Sony HIPATH 500 - Manual (Page 11)

Getting to know your OpenStage phone
11
OpenStage Key Module 15
The OpenStage Key Module 15 is a key module attached to the side of the
phone that provides an additional 18 illuminated, programmable sensor
keys.
Like keys on the phone, these keys can be programmed and used accord-
ing to your needs
Æ page 13.
You can only attach one OpenStage Key Module 15 to your
OpenStage 15 T.