Sprint Nextel 755P ユーザーズマニュアル

When using the keyboard, most people find it easiest to hold the device with two hands 
and use the tips of both thumbs to press the keys.

The Backspace, Return, Space, and Shift keys, as well as the letter keys, work in the same 
way as the same keys on any computer keyboard. In addition, your device offers several 
special function keys.