Timer FunctionDisplay hour, minute, and can select 12/24 hours format.May set the hour, minute, second as you like and maximum can set 99 hours 59 minutes 59 seconds. Built-In BacklightWhen not on lock statue, press any button, backlight will turn on for about 1-2 seconds, very convenient.You can see the time clearly in the night. Dual Alarm2 groups of alarm clocks (AL1 and AL2), can set 2 alarm clocks at the same time. Vibration OptionSelect music or vibration to remind you, will play music or vibration for about 60 seconds. Kindly note you can only choose one option at the same time. Lock Functionwhen in lock mode, disable all button to avoid miss operation.With bracket, it can stand on the counter-top and be put in your pocket with the bracket folded. Description: This is a completely new alarm clock that wakes you up without disturbing your partner. Slip it under your pillow and the clock will vibrate and shake until you wake up and switch the mechanism off. It has a backlight LED light that lets you check out the time in the dark. It also has the traditional beep alarm if you want to use it that way. This is ideal for people who have to work shifts or who need to take medication at precise hours of the day, or have a hearing impairment or work unusual hours that don't match with their partner. Specification: Condition: Material: ABS Color: White Backlight: Orange Alarm Clock: AL1/AL2 Time Display: 12/24H Battery: 2 x AAA Battery(Not Included) Product Size: Approx. 85 x 78 x 22mm / 3.3 x 3.1 x 0.9inch Package Weight: Approx. 101g Package Included: 1 x Digital Alarm Clock 1 x User Manual