Ambient UMPII Belt Clip
The Ambient UMPII Belt Clip – UMP-BC comes as a retro kit to update the UMP II for belt pack use.
To mount it, unscrew the top and bottom lid of the UMP II. Remove the bottom lid, and slide off the back panel of the UMP II. Slide on the new back panel with clip. Carefully line up the edges.
Fit the bottom panel and screw it on. Screw on the top panel.