Type 1 Black This che clock is suitable for most kinds of che games. It has 42 kinds of timing rules. It is easy to operate and can be silent, provides a nice timing tool for games.Features:With countdown function, can carry out multi section countdown, positive timing function and each step delay function.It can add seconds, limit times and read seconds.Different timing parameters can be set on the left and right sides. During the competition, the timing parameters of both sides can be modified.Can display the number of che steps, can be silent, does not affect players playing che.Turn off the machine and turn it on again to keep the parameters of the game before turning it off.Big seesaw button, nice handle, quick reaction, easy to control.It has 42 preset rules, multi-function and wide ranges of application.Specifications:Material: plastics + metalBattery: 2 * AA: 1.5V, 800mAh (Delivered without batteries)Item size: 161 * 100 * 62mm / 6.3 * 3.9 * 2.4inItem weight: 245g / 8.6ouncePackage size: 150 * 100 * 50mm / 5.9 * 3.9 * 2.0inPackage weight: 400g / 0.9lbPacking List:1 * Che Clock Type 2 Black / Yellow This digital clock is perfect for che and other games that require countdown, count up, bonus, and delay times. It's lightweight and small in size, so it fits in most bags conveniently and is portable to take to and from club or tournament events.Features:Large flexible button with better sense of pre.High quality of ABS plastic durable material shell.Available for bonus & delay mode.Portable energy saving design.Functions:Basic: Set basic time.BonusSet basic time and bonus time.DelaySet basic time, second reading times and time.Positive Timing: Set basic time to be 0 for overall rationing systemSpecifications:Material: ABSColor: Black / Yellow(Optional)Battery: 2 * AAA battery (Not included)Screen size: 103 * 23mm / 4.06 * 0.91inItem size: 140 * 88 * 45mm / 5.51 * 3.46 * 1.77inItem weight: 105g / 3.70ouncePackage size: 150 * 100 * 50mm / 5.91 * 3.94 * 1.97inPackage weight: 157g / 5.54ouncePacking List:1 * Che Clock