| 摘要 |
A device for aiding a user while entering data on a handheld keypad. The device may have a band with a protuberance that the user may wear while entering data on a handheld device. The device may be worn, for example, on a user's thumb with the protuberance in the center of the user's thumb pad. The protuberance may be used to press the keys on the handheld device.
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