Health and Safety Information 111• Do not listen at any volume that causes youdiscomfort. If you experience ringing in your ears,hear muffled speech, or experience any temporaryhearing difficulty after listening to your portableaudio device, discontinue use and consult yourdoctor.You can obtain additional information on thissubject from the following sources:Operating EnvironmentRemember to follow any special regulations inforce in any area, and always switch your mobiledevice off whenever it is forbidden to use it, orwhen it may cause interference or danger. Whenconnecting the mobile device or any accessoryto another device, read its user's guide fordetailed safety instructions. Do not connectincompatible products.Using Your Mobile Device Near OtherElectronic DevicesMost modern electronic equipment is shieldedfrom Radio Frequency (RF) signals. However,certain electronic equipment may not beAmerican Academy of Audiology11730 Plaza American Drive, Suite 300Reston, VA 20190Voice: (800) 222-2336Email: info@audiology.orgInternet:http://www.audiology.org/Pages/default.aspxNational Institute on Deafness and OtherCommunication DisordersNational Institutes of Health31 Center Drive, MSC 2320Bethesda, MD 20892-2320Email: nidcdinfo@nih.govInternet:http://www.nidcd.nih.gov/National Institute for Occupational Safetyand Health (NIOSH)395 E Street, S.W., Suite 9200Patriots Plaza BuildingWashington, DC 20201Voice: 1-800-35-NIOSH(1-800-356-4674)1-800-CDC-INFO (1-800-232-4636)Outside the U.S. 513-533-8328Email: cdcinfo@cdc.govInternet:http://www.cdc.gov/niosh/topics/noise/default.html1-888-232-6348 TTY