Huawei E220 User Manual - Page 55

14 Warnings and Precautions z Do not allow children to touch the small fittings. Otherwise, suffocation or gullet jam can be caused if children swallow the small fittings. Operating Environment z The wireless device is not water-resistant. Keep it dry. Protect the wireless device from water or vapor. Do not touch the wireless device with a wet hand. Otherwise, short-circuit and malfunction of the product or electric shock can be caused. z Do not use the wireless device in dusty, damp and dirty places or places with magnetic field. Otherwise, malfunction of the circuit can be caused. z When you carry or use the wireless device, keep it at least one inch (2.5 centimeters) away from your body, to avoid negative impact on your health caused by radio frequency leakage. z On a thunder stormy day, do not use your wireless device outdoors. z Do not touch the wireless device when it is running. This may affect call quality and cause the wireless device to operate with more power. z The wireless device may interfere nearby TV sets and radios. z In accordance with the international standards for radio frequency and radiation, use wireless device accessories approved by Huawei only. Cleaning and Maintenance z Before you clean or maintain the wireless device, disconnect your wireless device from your PC and turn off the PC. Otherwise, electric shock or short-circuit may be caused. z Do not use any chemical detergent, powder, or other chemical agent (such as alcohol and benzene) to clean the wireless device. Otherwise, part damage or a fire can be caused. You can clean the wireless device with a piece of soft antistatic cloth that is a little wet. z Do not scratch the shell of the wireless device. Otherwise, the shed coating may cause skin allergy. Once it happens, stop using the wireless device at once and go to see a doctor. z If the wireless device or any of its fittings does not work, turn to the local authorize service center for help. HUAWEI 47