Sony HDR-CX440 How To Use Manual page 158

If the casing and the projector lens are very dirty, clean the casing of this
product and the lens with a soft cloth lightly moistened with water, and then
wipe the casing and the projector lens with a dry soft cloth.
Avoid the following so as not to deform the casing, damage the finish or scratch
the lens:
Using chemicals such as thinner, benzine, alcohol, chemical cloths, insect repellent,
insecticide and sunscreen
Handling this product with the above substances on your hands
Leaving this product in contact with rubber or vinyl objects for a long period of time
[172] How to Use
About care and storage of the lens
Wipe the surface of the lens clean with a soft cloth in the following instances:
When there are fingerprints on the lens surface
In hot or humid locations
When the lens is exposed to salty air such as at the seaside
Store in a well-ventilated location subject to little dirt or dust.
To prevent mold, periodically clean and store the lens as described above.
[173] How to Use
Using this product abroad
Power supply
You can use this product in any countries/regions using the AC Adaptor
supplied with this product within the AC 100 V to 240 V, 50 Hz/60 Hz range.
You can also charge the battery pack.
Viewing images on a TV connected
To view images on a TV (or monitor), you need to connect this product to a TV
(or monitor) using the HDMI cable (supplied) or AV cable (sold separately).
Additional information
Additional information
Maintenance
Using this product abroad