TIME : Press the key to display the time. This value represents the sum of the time from start to finish SPEED: Press the button to display the speed. This value represents the speed of the current motion. DISTANCE : Press the key to display the distance. This value represents the total distance of the movement from start to finish CALORIE: Press the button to display the calories. This value represents the energy burned from start to finish Suitable for rowing machine. Specification: Color: Black Material: PP Size Chart: 17.2cmx11cmx3.5cm/6.77inchx4.33inchx1.38inch Package Includes: 1 Piece Rowing Machine Monitor Note: Please allow slightly errors due to manual measurement and different monitors. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!