HTC 99HEJ116-00 User Manual - Page 10

10 To assure optimal phone performance and ensure human exposure to RF energy is within the guidelines set forth in the relevant standards, always use your device only in its normal-use position. Do not touch or hold the antenna area unnecessarily when placing or receiving a phone call. Contact with the antenna area may impair call quality and cause your device to operate at a higher power level than needed. Avoiding contact with the antenna area when the phone is IN USE optimizes the antenna performance and the battery life. Antenna location General Precautions • Avoid applying excessive pressure to the device Do not put heavy objects or apply excessive pressure on the device to prevent damaging the device or distorting the touch screen display. Also avoid carrying the device inside your pocket for extensive lengths of time. • Heed service markings Except as explained elsewhere in the Operating or Service documentation, do not service any product yourself. Service needed on components inside the device should be done by an authorized service technician or provider.