After backing out of the menu, an encryption key can be selected by moving the trackball and typing characters on the keyboard.
退回菜单后，通过移动轨迹球或输入键盘上的字母选择一个密钥。
New wireless keyboard based on Bluetooth. 128-bit encryption.
发布全新无线蓝牙键盘，具有128位加密。
New wireless keyboard based on Bluetooth. 128 - bit encryption.
发布全新无线蓝牙键盘，具有128位加密。
New wireless keyboard based on Bluetooth. 128 - bit encryption.
发布全新无线蓝牙键盘，具有128位加密。
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