Function mode: Clock Mode: 12Hours-[H1 :MM], 24Hours-[H2 :MM]. CountUP Mode: between 00:00 and 99:59 (up mm:) CountDown Mode: [ MM:]. from [ 99:59] to [ 00:00]. StopWatch Mode: [MM :MS]. from [00 00:00] to [99 59:99]. Intervals custom Mode: [F1 MM: & C1 MM:], F: Work Period, C: Reset Period. At the same time supports 10 personal Custom training time,Automatically save settings after power off, no need to set again next time Pre-programmed interval (have button on the control) : 20s training, 10s rest, 8 cycles FGB 1: 5min training, 1min rest, 5 cycles FGB 2: 5min training, 1min rest, 3 cycles Specification: Mounting: Wall-mount, Hang ,Stand on desk Power: USB cable Sound: you can enable or disable it. Brightness: 10 levels, adjust by IR Remote control. colour: black Material: ABS Size: 28x9.1x3.4cm Package Contents: 1 x gym clock 1 x Remote control 1 x usb cable 1 Set x installation accessories Only the above package content, other products are not included. Note: Light 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.