From that, a sample trial applications It is found that the application has sensitive response, too. Because when there is a touch screen once it goes into operation in the next step. Which in reality already. The blind would have propensity Petting like touch things so it makes contact with the screen, often accidentally, press to go back to the original page, which is rather a waste of time. If the change from the touch screen once a couple of times to make this easier to use. But overall, it satisfied the application and further developed all vibrate notifications and sounds good, we feel and stylish. But a warning is repeated episodes of the bus closer than ever with the sound vibration, while warning there is a period of time that is too short. And he wants to keep the vibration frequency is greater than this because most blind to hang a mobile neck. The other section, it must carry a cane and still need to use the remaining senses to palpation and thus, feel the vibration alert is quite slow, and wanted the period with a long vibrating frequency greater than this.
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