A Sweet Sound Repetitive Double Timer You can use it like... - 4 set of “Concentration 25 min + Break 5 min” for repeat. - for Yoga, Stretch or Studying etc. features - 2 timer settings (max 99min 99sec + 99min 99sec) - basic 3 sounds and additional 5 sound - flash screen notice - vibration notice - dark screen mode recommendation - Earphones and speakers will make the sound much better notices - While counting, your iPhone will NEVER turns off automatically - It sounds even in silent mode - This app works only in the foreground - The accuracy of the time is NOT guaranteed screen explanation - 1st Time Count - 2nd Time & Loops Setting + sound / flash / vibration - 3rd Sound Select If you have any questions, please visit the support site