Introduction - If you have any usage issues, please Google them yourself
The design of electronic clock, (1) timer function: This is the basic design of the timer function, can be hours, minutes, seconds, time, and displayed. (2) Alarm function: If the current time and set the alarm clock the same time, the speaker issued a piece of music, and to maintain a minute. (3) adjusting the tone when the tone alarm sub-functions: the school or when when you need to re-set the alarm time, the experimental box through the keys on the control.