special function: step counting, calories, running seconds, alarm clock, countdown, second time displayDisplay Type: DigitalApplicable crowd: GeneralWaterproof: YesWaterproof performance: 50mType of movement: ElectronicOrigin of movement: JapanMovement model: Original movementDial diameter: 55mmMirror Material: Acrylic mirrorStrap material: TPUDial shape: RoundCase material: ABS ;---------------------------------Contains: 1XTable (transparent tape packaging) 1. Due to manual measurements, there are1-3 Centimeter error, is a normal phenomenon. 2. The color may be slightly different from the picture due to different screen or computer settings. If there is any problem with the product, please leave me a message in time. I will be sure to solve the problem quickly and effectively. Please do not make a complaint before sending us a message, as this may take more time to resolve the problem. After placing an order2-4Days shipped from China,15-25Business Day Delivery Ask: Do you provide invoices? A: We provide digital invoice, if you need, you can send us a message after placing the order. However, this invoice cannot be used as a tax invoice and it does not have a company seal.