385.1.3 Dual SIM mode settingYou can select to turn on dual SIMs, only SIM Card 1 orSIM Card 2 and flight mode.5.1.4 Touch screen calibrationWith the touch screen calibration feature, you can make thetouch pen more precise.5.1.5 Echo modes & sound effectThe user can select different echo modes and defineseveral echo modes at the same time. This mobile phoneprovides six echo modes, including Standard Mode,Meeting Mode, Outdoor Mode, Indoor Mode, andEarphone Mode and Bluetooth Mode.Regulate the sound play effect. The optional audioequalizers for sound effect include Echo Sound Effect,Stereo surrounding sound effect and shut off.5.1.6 Input methodsYou can select different input methods to input text, numberand special marks. This mobile phone offers you theseinput methods: Handwriting, English input in upper/lowercase letters, number input, Pin Yin (Chinese character),stroke input and special marks.5.1.7 Bluetooth- Activate Bluetooth: Enable or disable Bluetooth function.- Search hands-free device: The mobile phone canautomatically search the hands-free peripheral components.Generally the default Bluetooth earphone password is 0000,please refer to Bluetooth earphone user’s guide for details.- Remote control: It provides remote control feature.- My device: You can search for new device to