Using the included wireless headphones, Replacing headphone batteries, Listening over the car speakers – Rosen Entertainment Systems T12 User Manual
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Rosen T10/T12 Owner’s Manual
USING THE INCLUDED WIRELESS HEADPHONES
The system comes with two (2) infrared (IR) wireless headphones. 
These headphones receive a signal from an IR transmitter built into the 
unit. These headphones allow rear-seat passengers to listen without 
using the vehicle speakers.
To turn the headphones on and off, slide or press the Power ON/OFF 
button on the ear piece. The Power LED on the ear piece indicates 
when headphone power is on. Power turns off automatically after sev-
eral minutes of no audio, in order to preserve battery life.
To adjust the headphone volume, rotate the thumb wheel on the head-
phones.
If your system is confi gured as a dual zone setup, select “A” or “B” to 
receive the desired audio track.
REPLACING HEADPHONE BATTERIES
The wireless IR headphones require two AAA batteries. To replace the 
batteries, slide off the battery compartment door on the earpiece and 
insert batteries, as shown. Make certain that the battery orientation 
matches the marks inside the battery compartment.
LISTENING OVER THE CAR SPEAKERS
The system uses an FM Transmitter (FMT) to send audio through the 
vehicle radio and speakers. To listen over your speakers:
1 Make
sure
system
MUTE is off. Press the SPEAKER button.
“Speaker Sound on FM _ _._” will appear.
2 Turn on the car radio. Tune to the FM frequency displayed on the
monitor.
You may want to store the FM Transmitter frequency as a preset of you 
radio for ease of use.
If the words “Headphones Only” appear. Press the Speaker button a 
second time to display “Speaker Sound on FM _ _._.” If you have any 
questions about your FMT, please ask you Rosen dealer.
Note: Press the speaker button to display “Headphones Only.” To 
return the car radio to normal function.
Adjust headphones 
here
Power On/Off Switch
Volume Knob Power 
LED
