It's really easy to use! If power on the app then will speak(talk) the time with text and favorite music(mp3) from 8am to 10 pm everyday automatically. (Don't worry! Nothing to set except clicking Power On('Activated Speak hours(time)').) Listen your own text with voice every hour on hours. Simple and Lite Alarm. ■ Math problems to improve brain and prevent dementia -Solve various math problems games with 5 levels of difficulty every hour. -Improve your memory and concentration! ■ 2 differe