Section 4A: Important Safety Information 165Important Safety InformationUsing Your Phone With a Hearing AidDeviceYour Sprint PCS® Phone has been tested for hearing aid devicecompatibility. When some wireless phones are used near some hearingdevices (hearing aids and cochlear implants), users may detect a buzzing,humming, or whining noise. Some hearing devices are more immune thanothers to this interference noise, and phones also vary in the amount ofinterference they generate.The wireless telephone industry has developed ratings for some of theirmobile phones, to assist hearing device users in finding phones that maybe compatible with their hearing devices. Not all phones have been rated.Phones that have been rated will have an “M3” or “M4” rating on the box.Your Sprint PCS Vision Phone A580 by Samsung has an M3 rating.The M3/M4 ratings do not guarantee successful interoperation betweenyour phone and hearing aid device. Results will vary depending on the levelof immunity of your hearing device and degree of your hearing loss.The more immune your hearing aid device is, the less likely you are toexperience interference noise from your wireless phone. Hearing aiddevices should have ratings similar to phones. Ask your hearing healthcareprofessional for the rating of your aids. Most new hearing aids have at leastan M2 immunity level. Add the “M” ratings of your hearing aid and yourphone to determine probable usability: Any combined rating equal to or greater than six offers best use. Any combined rating equal to five is considered normal use. Any combined rating equal to four is considered usable.Thus, if you pair an M3 hearing aid with an M3 phone, you will have acombined rating of six for “best use.”Sprint further suggests you experiment with multiple phones (eventhose not labeled M3 or M4) while in the store to find the one thatworks best with your hearing aid device. Should you experienceinterference after purchasing your phone, promptly return it to the store.With the Sprint® 14 Day Risk Free Guarantee you may return the phonewithin 14 days of purchase for a full refund.Note: Phones rated M3 or M4 meet FCC requirements and may generate lessinterference to hearing devices than phones that are not labeled. M4 isthe better/higher of the two ratings.
