Safety & Warranty Information
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accessories could generate sparks. Sparks can cause an explosion or fire, resulting in bodily
injury or even death. These areas are often, but not always, clearly marked. They include:
Fueling areas such as gas stations.
Below deck on boats.
Fuel or chemical transfer or storage facilities.
Areas where the air contains chemicals or particles such as grain, dust, or metal
powders.
Any other area where you would normally be advised to turn off your vehicle’s engine.
Note:
Never transport or store flammable gas, flammable liquids, or explosives in the
compartment of your vehicle that contains your phone or accessories.
Restricting Children’s Access to Your Phone
Do not allow children to play with it as they could hurt themselves and others, damage the
phone or make calls that use your airtime balance.
Using Your Phone With a Hearing Aid Device
A number of Boost phones have been tested for hearing aid device compatibility. When some
wireless phones are used with certain hearing devices (including hearing aids and cochlear
implants), users may detect a noise which can interfere with the effectiveness of the hearing
device.
Some hearing devices are more immune than others to this interference noise, and phones also
vary in the amount of interference noise they may generate. ANSI standard C63.19 was
developed to provide a standardized means of measuring both wireless phone and hearing
devices to determine usability rating categories for both.
Ratings have been developed for mobile phones to assist hearing device users find phones that
may be compatible with their hearing device. Not all phones have been rated for compatibility
with hearing devices. Phones that have been rated have a label located on the box.
Your HTC
EVO Design 4G has an M4 and a T4 rating.
These ratings are not guarantees. Results will vary depending on the user’s hearing device and
individual type and degree of hearing loss. If a hearing device is particularly vulnerable to
interference noise; even a phone with a higher rating may still cause unacceptable noise levels
in the hearing device. Trying out the phone with your hearing device is the best way to evaluate
it for your personal needs.
M-Ratings:
Phones rated M3 or M4 meet FCC requirements for hearing aid compatibility and
are likely to generate less interference to hearing devices than unrated phones. (M4 is the
better/higher of the two ratings.)
