Small Battery Electronic Traveling Timer 1.Easy to operate : press and hold the button of ST/SP to switch between clock (12/24H) とタイマーモード. Quickly set the time by press button of 1H/5M/1M/1S. 2. カスタムモード :Under the countdown setting mode, カスタムボタンを長押しします。 2 seconds to remember the common countdown time such as brushing and …