TalkBack, Kickback, and SoundBack are apps for the Android Accessibility Service to help blind and vision-impaired users use their devices more easily.These apps add spoken, audible, and vibration functionality services to your device. They are system applications that were pre-installed on most device and are updated when the accessibility service is improved.These apps only get activated if you explicitly turn on Accessibility.Steps to activate Accessibility:1. Go to Settings2. Select Accessibility3. Enable Accessibility checkbox4. Enable TalkBack, KickBack, SoundBack checkboxes
备份Back It Up备份Back It Up安卓版介绍备份Back It Up，一般又称Back It Up。备份Back It Up，备份自己的各项资料；可以对联系人、通话记录、系统设置、短信、彩信、浏览器书签、播放列表、用户词典进行备份。
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