Note: The color of the product we ship is the color in the first picture, and the specification and quantity are shipped according to the quantity and specification described in the title. If you need to change the color or style, you need to contact us within 12 hours after placing the order. Our product description: This multi-function stopwatch shows the time clearly with the function of time, calendar and alarm. It is particularly suitable for PE teachers, sports coaches, etc. It is low power consumption, energy-saving and environmentally friendly. Product Features: Two rows display. 10 memory records with laps or split memory. IPX7 water-resistant. Time,calendar,alarm and countdown. Turn on/off,mute key,temperature display,low batter indication. Support 12/24 hours time format. Measurable up to 10 hours,1/100 of a second within the first 30 minutes,after that,in second. Ergonomic design to hold.With a hang rope,convenient to wear on your neck. Suitable for running,swimming,football,basketall,etc. Specification: Product material: ABS Water-resistant: IPX7 Battery: 1* CR2032 cell battery (included) Size: 8.3 * 6.3 * 2.3 cm / 3.3 * 2.5 * 1.0 in Weight: Approx. 68 g / 2.4 oz Package Size: 12 * 12.5 * 3.5 cm / 4.7 * 4.9 * 1.4 in Package Weight: Approx. 99 g / 3.5 oz Package List: 1* Stopwatch (with a hang rope) 1* User Manual (English) Notes: 1. Please allow 1 - 2cm (0.4 - 0.8") differences due to manual measurement,thanks. 2. Please do not press any buttons underwater,and keep it away from steam and hot water. Note: Because the model and display effect of the monitor may be different, there may be slight differences in color, and the size is manually measured, there may be an error of 1-2cm, please understand.