Interval Timer/Cycle Timer: It Can Timing A Single Group Cycle Timing Two Groups Act As An Interval Timer (Applicable To Pomodroido). Maximum 99 Hours, 59 Minutes and 59 Seconds. Perfect for Hiit Fitness Routines and General Strength Training. . Rechargeable and Luminous Timer The Kitchen Timer Is Rechargeable Via Usb Cable, and You Don'T Have To Worry About Changing The Battery. This Exercise Timer With Light Up Function Allows You To Easily Read The Data In The Dark Night for Fitness, Workout, Exercise More Accurate. . Vibrating/Flashing/Loud Alarm: There Are Three Alarm Modes Including Vibration, Flashlight and Loud Alarm, You Can Choose To Turn Off The Vibration or Adjust The Volume (Choose Between High, Low or Silent). Ideal for People With Hearing or Vision Problems. Clock and Three Alarms: This Digital Student Timer Comes With A 24-Hour Clock and Three Alarms. It Is The Perfect Timer for Students To Manage Their Time and Improve Their Study Efficiency. There Is On/Off and Memory Function, The Timer Saves The Last Set Time As Memory Time.