About Phone; Main Buttons - doppio U450 User Manual

1. Keep away from any liquid
Keep away from rain, water, extreme humidity, sweat or other wet objects.
2. Keep away from extreme hot or cold environments
Do not place the device under the environments where temperature is lower than
0℃ (32℉) or higher than 45℃ (113℉).
3. Keep away from microwave
Do not place the device in microwave oven for drying.
4. Keep away from dust or mud
Do not expose to dust, mud, sand, food or other improper substances.
5. Cleaning
Please use the dry soft cloth for drying. Do not use alcohol or other cleaning
agents.
6. Fall prevention
Prevent the fall from height.

About phone

Note: The illustrations in this manual are only for reference, and their functions are
based on the real product.Basic Operations.

Main Buttons

1. 【Home】:Touch this button to return to home screen.
2. 【Power】:When the screen is unlocked, long press【Power】to turn on/off the
computer. In any other interface, short press this button to lock the screen.
3. 【Volume】 :Press 【Volume】 key, to display the pop-up box of "Volume Adjust" .
4. 【Menu】: Press 【Menu】key,to display desktop thumbnail.
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