Cobra Electronics CIR 1000 A - Manual (Page 8)

5
Controls Overview (b)
UNIT BACK VIEW
Socket Description
AUX IN Connects to the external audio device
Headphone Connects to the headphone
LAN Connects to the LAN cable
note 1: Designed to help inner airflow from the Loudspeaker to vent
note 2: AC power cord door.