David lives in the United States and he likes all kinds of unique things. Because there are often people in his garage and tool room during the day, he hopes to be able to set the alarm time. It is best to trigger the alarm only at night and push the alarm information through the phone, so I recommended LS-4GS12 to him, black The appearance looks more high-end, and can also set the arming time. David has been using it for almost half a year now.