What is one of the features of tactile keypads mentioned?

One of the features of tactile keypads is the raising of braille characters. This design element is crucial for individuals who are visually impaired or blind, as it allows them to read and interact with the keypad through touch. The raised braille provides a way to identify different buttons and their functions without the need for visual confirmation, enhancing accessibility and usability. This tactile feedback is essential in ensuring that users can confidently and accurately input information through the keypad, facilitating independent use of devices and technology.