[. . . ] Closed-Back Dynamic Headphones User Guide Thank you for choosing the Studiophile Q40 professional reference headphones. Your new headphones have been designed to provide the best in professional-quality monitoring and music enjoyment. [. . . ] A hearing test and medical examination are the only way to accurately diagnose hearing damage. We strongly recommend you make an appointment with your ear doctor if you notice any of the following symptoms: i) Ringing or buzzing in the ears ii) Difficulty in understanding speech iii) Muffling of sounds 4 Do not use these headphones in any environment where a failure to hear surrounding sounds could be dangerous. In no way should these headphones be used while driving a car, biking, or operating machinery. 2. Fold one earcup in, and collapse the other earcup in on top of it. 2 Studiophile Q40 User Guide 4 When using your headphones with an unfamiliar or unstable sound system (airplane, public access ports, etc. ), make sure the volume is low to prevent "break-in" bursts of loud sounds. Different individuals may be impacted to a different degree by high noise levels (volumes exceeding 85 dB(A)). Regular exposure to loud headphones may be dangerous to your hearing and can cause permanent hearing loss. Please review and consider the following Occupational Safety Health Administration ("OSHA") guidelines regarding the maximum time exposure to sound pressure levels before hearing damage may occur. Sound Pressure Level dB(A) 90 95 100 105 110 Permissible Noise Exposure Duration (per day) 8 hours 4 hours 2 hours 1 hour 30 minutes Warning: Exposure to sound pressure levels above 115 dB(A) for even short periods of time can cause permanent hearing damage. The preceding OSHA exposure levels should be considered maximum limits. Compliance with the OSHA limits will not necessarily provide you with protection from potential hearing loss. For more information visit the OSHA website at www. osha. gov. Studiophile Q40 User Guide 3 English OSHA has established the following noise exposure limits: Warranty Warranty Terms M-Audio warrants products to be free from defects in materials and workmanship, under normal use and provided that the product is owned by the original, registered user. Visit www. m-audio. com/warranty for terms and limitations applying to your specific product. Warranty Registration Immediately registering your new M-Audio product entitles you to full warranty coverage and helps M-Audio develop and manufacture the finest quality products available. Register online at www. m-audio. com/register to receive FREE product updates and for the chance to win M-Audio giveaways. WARNING: This product contains chemicals, including lead, known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. Studiophile Q40 Tested to comply with FCC standards FOR HOME OR STUDIO USE © 2008 Avid Technology, Inc. [. . . ] 2-11-7 Akasaka, Minato-ku Tokyo 107-0052 Japan Customer Support & Technical Support online . 03-3505-4034 M-Audio France Floor 6, Gresham House, 53 Clarendon Road, Watford, WD17 1LA, United Kingdom Renseignements Commerciaux tel . [. . . ]