Sony A900 - Manual (Page 30)

30
You can catch the cord of the RM-S1AM Remote Commander (not
supplied) on the shoulder strap to secure it.
Using the Remote Commander clip
1
Open the Remote Commander
clip.
2
Clip the strap and the cord of the
Remote Commander to the
Remote Commander clip.
3
Close the Remote Commander
clip.
How to use the Remote Commander
1
Remove the insulation sheet. Insulation sheet
2
Point the Remote Commander at the remote sensor on the front
of the camera in order to operate the camera (page 38).