found to comply with the limits for a Class B
-Reorient or relocate the receiving antenna. or health. Use only the supplied or an approved 15.19 Labeling requirements. digital device, pursuant to part 15 of the FCC
-Increase the separation between the This device complies with part 15 of the FCC Rules. equipment and receiver. Rules. Operation is subject to the following two conditions: (1) This device may not cause These limits are designed to provide reasonable
-Connect the equipment into an outlet on a protection against harmful interference in a circuit different from that to which the receiver harmful interference, and (2) this device must residential installation. This equipment is connected. accept any interference received, including interference that may cause undesired operation. 15.21 Information to user. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. generates uses and can radiate radio frequency
-Consult the dealer or an experienced radio/TV energy and, if not installed and used in technician for help. accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that Absorption Rate (SAR) information:
This device meets the government's interference will not occur in a particular requirements for exposure to radio waves. The installation. If this equipment does cause guidelines are based on standards that were harmful interference to radio or television developed by independent scientific reception, which can be determined by turning organizations through periodic and thorough the equipment off and on, the user is evaluation of scientific studies. The standards user's body and the back of the device. The use of belt clips, holsters and similar accessories should not contain metallic components in its assembly. The use of accessories that do not satisfy these 15.105 Information to the user. Note: This equipment has been tested and encouraged to try to correct the interference include a substantial safety margin designed to requirements may not comply with FCC RF by one or more of the following measures:
assure the safety of all persons regardless of age exposure requirements, and should be avoided. antenna. FCC RF Exposure Information and Statement The SAR limit of USA (FCC) is 1.6 W/kg averaged over one gram of tissue. This device was tested for typical body-worn operations with the back of the device kept 10mm from the body. To maintain compliance with FCC RF exposure requirements, use accessories that maintain a appropriate separation distance between the The ANSI Standard presents performance requirements for acceptable interoperability of hearing with wireless communications devices. When these parameters are met, a hearing aid operates acceptably in close proximity to a wireless communications device. WD RF audio Interference level categories in logarithmic units Emission categories
<960MHz Limits for E-field
>960MHz Limits for E-field emissions emissions 50 to 55 dB (V/m) 40 to 45 dB (V/m) Category Category T1 Category T2 Category T3 Category T4 Telephone parameters WD signal quality
[(signal + noise) to noise ratio in decibels]
0 dB to 10 dB 10 dB to 20 dB 20 dB to 30 dB
> 30 dB M1 M2 M3 M4 45 to 50 dB (V/m) 35 to 40 dB (V/m) HAC Rate Category: T3 40 to 45 dB (V/m) 30 to 35 dB (V/m)
< 40 dB (V/m)
< 30 dB (V/m) HAC Rate Category: M4 FCC Hearing Aid Compatibility (HAC) Regulations for Wireless Devices The U.S. Federal Communications Commission (FCC) has established requirements for digital wireless mobile devices to be compatible with hearing aids and other assistive hearing devices. When individuals employing some assistive hearing devices (hearing aids and cochlear implants) use wireless mobile devices, they may detect a buzzing, humming, or whining noise. Some hearing devices are more immune than others to this interference noise, and mobile devices also vary in the amount of interference they generate. The wireless telephone industry has developed a rating system for wireless mobile devices to assist hearing device users find mobile devices that may be compatible with their hearing devices. Not all mobile devices have been rated. Mobile devices that are rated have the rating on their box or a label located on the box. The ratings are not guarantees. Results will vary depending on the user's hearing device and hearing loss. If your hearing device happens to be vulnerable to interference, you may not be able to use a rated mobile device successfully. Trying out the mobile device with your hearing device is the best way to evaluate it for your personal needs.