Famous Trails MD1023 Owner's Manual page 8

2. Slide the left battery cover off in the direction of the arrow.
3. Place a 9V battery into the battery compartment matching the polarity
symbols (+ and -) marked inside and reinstall the left battery cover.
4. Slide the right battery cover off in the direction of the arrow.
5. Place a 9V battery into the battery compartment matching the polarity
symbols (+ and -) marked inside and reinstall the right battery cover.
Caution:
The two sides covers cannot be interchanged. The sign on the cover
must match the sign inside the compartment, B1 to B1 and B2 to B2.
If you don't plan to use the unit for a week or more, remove the
batteries. Batteries can leak chemicals that can destroy electronic
parts.
Warning:
Dispose old batteries promptly and properly. Never bury or burn
them.
USING HEADPHONES (not included)
1.Insert the stereo headphones' 3.5mm plug into the PHONE jack.
2.The unit does not have volume control. It's better to use stereo
headphone with volume control. Set the volume to desired level.
Listening Safely
To protect your hearing, set the volume to the lowest setting before
you begin listening, adjust the volume to a comfortable level.
Do not listen at extremely high volume levels. Extended high volume
listening can lead to permanent hearing loss.
Do not wear headphones while operating your detector near
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