Gefen GTB-HD-SIGGEN - Manual (Page 20)

Installing the Battery
1. Hold the IR remote control unit facing down and gently pull the battery tab
with your thumb to reveal the battery slot.
2. Insert the included battery into the battery slot. The battery slot indicates
that the positive (+) side of the battery must be facing up as shown below:
3. Close the battery slot by sliding it closed.
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IR REMOTE CONTROL UNIT
Battery