1、Especially suitable for banking, telecommunications, kitchen, laboratory and other industries for time-limited services. 2、Alarm time can be set and ring music can be selected. There are seven music and two different beep sounds to choose from. 3、Can also display and set time, date, and can also be 12/24h conversion. 4、Able to set birthday reminder date, time and automatic play bithday music, not to miss every important day. 5、Also has the function of digital thermometer, counter timer, night light, and can be used as a snooze alarm. 1 x Timer Condition: 100% Brand NewItem Type: TimerMaterial: ABSBattery: 3 x AAA Battery (not included)Light Color: BlueWeight: Approx. 94g / 3.3ozUsage: 1. In the normal state, press the MODE key to enter the state of 12H/24H, and then press UP/DOWN for 12/24 hour conversion. Press SET key and UP and DOWN keys to set time and date. 2. Under normal condition, according to two consecutive under the MODE key to enter the ALARM state, has ALARM signal display, press SET key and the UP/DOWN keys can be SET UP ALARM time and choose a cause ring, with a total of seven piece of music and two different selection of beeps, press SET button again to close the ALARM clock function, when setting the ALARM time arrives, make a minute, if you have open a snooze function, the ringing every 3 minutes, total rang four times. 3. In normal state, press the MODE key for three times to enter the birthday reminder state. Press SET key and UP/DOWN key to SET the date and time of birthday reminder. Press SET again to turn off the birthday reminder function. When the time SET by the birthday reminder arrives, play the birthday song for five minutes. 4. In normal state, press the MODE key for four times continuously to enter the TIMER state, and the TIMER will display. Press SET key and UP/DOWN key to SET the time for reverse timing. The timing range is 23:59-00: 00.  When the setting time reaches 00:00 00, the alarm will sound for 1 minute. At the same time, the 00:00 00 display will keep flashing, can press any button to stop the alarm.