1.Easy to UseJust turn the timer with the desired number facing up, then the timer starts counting down immediately and select the selected alarm mode (beep or vibrate or silent mode). Simply turn the power button face up to stop the countdown.2.Multiple preset timesThe cubic timer has 11 preset countdown times (1/3/5/10/15/20/25/30/45/60/90 minutes). You don't have to set the time for the countdown every time, just roll over the timer to the desired preset time.3.Install Rechargeable BatteryIt has a rechargeable battery and USB-C charging port, no disposable batteries are needed to run the timer. You don't have to replace batteries every time, and you don't have to waste valuable time and money buying extra batteries.4.3 Alarm Modes3 alarm modes can be selected according to your convenience or location. You can set it to vibrate or silent mode in quiet places, and set it to beep mode in noisy places like cooking or exercising.5.LED IndicatorWith the LED indicator, you can easily grasp the status of the timer and see it clearly at a glance. LED indicators make it easy to know if the countdown is running or ending, and if it needs charging or is fully charged.Specification:Material: ABS, PCPower input: 5V 1ARated power: output 0.2WBattery capacity: Battery capacity: 450mAhUsage time: A single alarm sounds for 30 seconds, and can be used 50 to 800 timesCharging time: 2~2.5 hoursProduct net weight: 38 gramsProduct size: 57*57*47mm / 2.24*2.24*1.85 inchesProduct color: milky white, primrose yellowPackage includes:1 x 12-hedron timer1 x USB charging cable