54Health and safety informationstrength by displaying a number of bars next to the signal strengthicon. The more bars displayed, the stronger the signal.If you're inside a building, being near a window may give you betterreception.Understanding the Power Save FeatureIf your device is unable to find a signal after 15 minutes of searching, aPower Save feature is automatically activated. If your device is active,it periodically rechecks service availability or you can check it yourselfby pressing any key.Anytime the Power Save feature is activated, a message displays onthe screen. When a signal is found, your device returns to standbymode.Maintaining Your Device's Peak PerformanceFor the best care of your device, only authorized personnel shouldservice your device and accessories. Faulty service may void thewarranty.There are several simple guidelines to operating your device properlyand maintaining safe, satisfactory service.• Hold the device with the antenna raised, fully-extended and overyour shoulder.• Try not to hold, bend or twist the device's antenna.• Don't use the device if the antenna is damaged.• Speak directly into the device's receiver.