Features:3 major modes:Independent timing: two groups of timing forward/backward, each group can be timed up to 9 hours, 59 minutes and 59 secondsTwo independent cycle countdown timing: automatic cycle up to 99 times, with count displayTwo alternate cycle countdowns: alternate cycle up to 99 times, with count display3 storage memory function:each group has three independent memory time, different modes can also be customised memory timeMute/shutdown function:short press loud, soft, mute have flashing light prompts, long press can shut down; fully applicable to fitness, learning, cooking and other scenes.Specification:Name: Dual Groups Recyclable TimerVolume: Loud/Lowith MuteMaterial: ABSMirror: Acrylic mirrorPower supply: 2 AAA batteries (batteries not included)Net weight: 75gSize: 93 x 73 x 21mmColor: GrayMaterial: ABSFunction:Independent positive/reverse countdown, independent cycle countdown, alternate cycle countdown,3 storage memoriesPackage Contents:1 x Kitchen timerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.