SanDisk C250 User Manual - Page 5

Symptoms of hearing loss increase gradually with prolonged exposure at high levels of loudness. Initially, you may not even be aware of the loss unless detected with a hearing test. HEARING LEVELS To help you understand what may be considered a safe hearing level, the following examples are included for your reference. Examples of Typical Approximate Sound level: • Sound Levels in Decibels (dB)* • Refrigerator humming 40 • Normal conversation 60 • City traffic 80 • Motorcycles and lawnmowers 90# • Rock concerts 110-120# • Firearms 120-140# * A decibel (dB) is a unit of relative measurement of the strength of sound wave. In decibels (dB), a measured signal level doubles with every additional 3 dB. # These sound decibel levels are considered harmful under extended exposure. Information courtesy of the National Institute of Deafness & Other Communication Disorders (NIDCD) http://www.nidcd.nih.gov/health/hearing/noise.asp FOR YOUR SAFETY! Your hearing may adapt to higher volumes of sound. In order to prevent any harmful impact to your hearing, you must control the sound emanating from your headphones and set the media player volume to a low setting where you can hear it clearly and comfortably. Studies, including one from NIDCD indicate that sounds of less than 80 decibels, even after long exposure, are unlikely to cause a hearing loss. Listen to your media player at such a level that you can still hear conversation and other people in your environment without shouting when you attempt to converse. It can also be dangerous to play your music with headphones/earphones at high volume while walking, or engaged in other activities. You should exercise extreme caution and discontinue use in potentially hazardous situations. Do not use headphones/earphones while driving, cycling, or operating any motorized vehicle. This may create a traffic hazard and may be illegal in some areas. Disposal Instructions Do not dispose of this device with unsorted waste. Improper disposal may be harmful to the environment and human health. Please refer to your local waste authority for information on return and collection systems in your area. Safety Tips & Cleaning Instructions 2