SOUL SL49 SL49CS User Manual

Reading this guide will ensure proper and safe use of your Soul® headphones.  Follow 

all operation guidelines and adhere to all safety warnings and cautions.

 

Use your headphones responsibly. Exposure to excessively loud noise can cause Noise 

Induced Hearing Loss (NIHL). “The loudness of sound is measured in units called deci-

bels. For example, the humming of a refrigerator is 40 decibels, normal conversation 

is approximately 60 decibels, and city traffic noise can be 85 decibels. Sources of noise 

that can cause NIHL include motorcycles, firecrackers, and small firearms, all emitting 

sounds from 120 to 150 decibels. Long or repeated exposure to sounds at or above 

85 decibels can cause hearing loss. The louder the sound, the shorter the time period 

before NIHL can occur. Sounds of less than 75 decibels, even after long exposure, are 

unlikely to cause hearing loss.” 

Source: http://www.drf.org . Additional information about preventing hearing damage may be found from The Consumer Electronics As-

sociation http://www.ce.org. World Health Organization http://www.who.int, Environmental Protection Agency http://epa.gov 

Before plugging your Soul® headphones into your phone or multimedia device, make 

sure that the volume has been set to zero (0) and the power is off. Once you have 

turned on the device, increase the volume to a safe and comfortable level. Putting on 

your headphones and turning on at full volume may cause damage to your hearing. 

Keep headphones out of reach of small children. These headphones are not a toy and 

could be harmful to small children.

Below is a chart to help you better understand the causes and effects of different 

sound levels. The noise levels are rated in dB (decibels) 

  Quiet Library 

 

30 dB 

             No Effect - Normal

  Normal Conversation   

60 dB 

             Comfortable Hearing

  City Traffic (inside car)       

85 dB 

             Maximum Level before hearing 

 

 

 

 

             damage begins. OSHA 

 

 

 

 

             recommends no more than 8  

 

 

 

 

 

             hours of exposure to sound levels  

 

 

 

 

 

             of 90 dB daily.

  Power Saw at 3’ 

 

110 dB 

              Permanent Hearing Loss likely due 

 

 

 

 

              to prolonged unprotected exposure. 

  Jet Engine at 100’ 

                       120 to 140 dB          At 125 dB the human ear begins to 

 

 

 

 

               experience pain that can lead to 

 

 

 

 

               permanent hearing loss even 

 

 

 

 

               during short unprotected periods.

Sources: http://www.drf.org , The Consumer Electronics Association http://www.ce.org. World Health Organization http://www.who.int, 
Environmental Protection Agency http://epa.gov , and the Occupational Safety & Health Organization http://OSHA.gov 

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