Motorola W156 Getting Started Manual page 24

DO NOT hold the external antenna when the mobile device is
IN USE. Holding the external antenna affects call quality and may
cause the mobile device to operate at a higher power level than
needed.
Product Operation
When placing or receiving a phone call, hold your mobile device just
like you would a landline phone.
If you wear the mobile device on your body, always place the mobile
device in a Motorola-supplied or approved clip, holder, holster, case,
or body harness. If you do not use a body-worn accessory supplied
or approved by Motorola—or if you hang your mobile device from a
lanyard around your neck—keep the mobile device and its antenna
at least 2.5 centimeters (1inch) from your body when transmitting.
When using any data feature of the mobile device, with or without an
accessory cable, position the mobile device and its antenna at least
2.5 centimeters (1 inch) from your body.
Using accessories not supplied or approved by Motorola may cause
your mobile device to exceed RF energy exposure guidelines.
For a list of Motorola-supplied or approved accessories, visit our
Web site at: www.motorola.com.
RF Energy Interference/Compatibility
Nearly every electronic device is subject to RF energy interference
from external sources if inadequately shielded, designed,
or otherwise configured for RF energy compatibility. In some
circumstances your mobile device may cause interference with
other devices.