scientific timing, beeping reminders, LCD display, battery life, easy to operate, timing. intelligent timer, accurate timing learning life both. portable and convenient at any time, small size, home / learning / cooking / yoga / office / fitness, etc. ... induction timing, light flip open/zero, small bead collision trigger organ, flip can time, easy and simple, the elderly and children can easily use. two-position volume adjustment, the sound can be large or small, mode selection dial knob, the dial knob for two gears, treble,