Sony AIBO Explorer User Manual page 56

Retractable head light (available with ERS-220 only)
The retractable head light of AIBO stretches and
lights in the following cases:
• The emotion of AIBO runs high,
• AIBO is trying to find or has found something, or
• You have pressed the tail sensor (center) of AIBO.
Note
Do not look at the head light for a long time. It may hurt your eyes.
Back multi-indicators (available with ERS-220 only)
These indicators show you the various
conditions of AIBO such as the remaining
power level of the battery pack depending on
its surroundings or your operation.
56
Retractable
head light
Back
multi-
indicators