Attention when studying code:

when you click the Study Code button to begin your studying process in the according  interface of APP software as picture shown below,the buzzer will sound as a reminder.

the Hand remote control  should close to the black lens in front of  the machine when you send code. It can help you send successfully. you can make a 45 degree angle between the smart controller  and the Hand remote control  to launch the IR code .

When you have finished  the learning,it will sound again to imply the completion.