信息提示器 / Message alert

Descriptions of the problem：
a、 Forget to take an umbrella when it rains；
b、 Forget to take the documents when there is a meeting;
c、 Forget to take a wallet when there is an appointment.
The message alert can make voice reminder through the wireless connections with locks;
The voice reminder includes default reminder (weather) and defined reminder inputted by voice.
The message alert with new reminders will inform you when openning the door.You can choose ON or OFF when the voice reminder is over.