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. 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

252 4A. Important Safety Information

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HTC TC U250, HTC EVO Shift 4G manual 252 4A. Important Safety Information