This large countdown timer, made of aluminum alloy with a thick and sturdy frame, can be easily wall-mounted using brackets to save space. Setting the timer is straightforward using the included remote (batteries required, NOT included) and it provides a buzzer alert. The large countdown timer can automatically calculate the time for you when you input the starting and ending times. The large led countdown clock is coded electric. If the power is disconnected it keep track of the time for 24 hours. Large led display: 9 Digits; Length: 18.78inch/477mm; Height: 5.04 inch/128mm Voltage: AC110V The large display clock displays time in 12-hour or 24-hour formats, countdown or count up for days (maximum of 999 days, 23 hours, 59 minutes, and 59 seconds). This large countdown timer, made of aluminum alloy with a thick and sturdy frame, can be easily wall-mounted using brackets to save space. Setting the timer is straightforward using the included remote (batteries required, NOT included) and it provides a buzzer alert. The large countdown timer can automatically calculate the time for you when you input the starting and ending times. The large led countdown clock is coded electric. If the power is disconnected it keep track of the time for 24 hours. Large led display: 9 Digits; Length: 18.78inch/477mm; Height: 5.04 inch/128mm Color: As Shown Material: Aluminum Alloy + Acrylic Package Contents: 1* Countup Countdown Timer Clock(mounting rack applied on the top) 1* Remote Control 1* US Plug Power Adapter 1* Engligh Manual