Shell Material: Plastic Movement: Electronic Display: LED Display: Numbers Appearance: Square Function: Alarm Clock Style:fashion Color: White, Blue, Black, Pink Size: 73.5*73.5MM Weight: 70G Battery: AAA Battery Features: 1.1 Seconds To 24 Hours Countdown, With Clock And Memory Function 2. With Sound, It Can Be Turned On Or Off That Is, It Can Be Silent With Flashing Light ,Operation: Press The "reset Key" In Time Mode To Switch The Sound On And Off. 3. It Has A Power-off And Power-on Function. Press And Hold The "Start/Stop Button" For 3 Seconds In Time Mode To Power Off, And Press The Start/Stop Button To Power On. The Settings In The Power-off And Power-on Will Not Be Cleared. 4. Equipped With 2 Sets Of Alarm Clock Functions Per Day, The Alarm Clock Can Be Turned On Or Off, With Snooze Mode 5. The Countdown Has A Memory Function For The Last Setting 6. In The Time Mode, There Is A Function Of Locking The Hours, Minutes And Seconds Keys To Prevent Accidentally Pressing The Time. Package Included: 1*Timer (battery Not Included)