Purchase instructions: 1. This product comes with its own packaging box, so there's no need to purchase the box separately! 2. Each style can swim 30- 50m waterproof! But hot water bathing is not allowed! 3. For product quality issues, buyers must cooperate by returning at least 10 units for exchange – the same product will be processed. 4. Orders will be shipped within 48 hours of payment (may be delayed during holidays). Please do not inquire about the status of your order during the normal shipping period. Within Guangdong Province, delivery usually takes one day; for other provinces, it takes 3-5 days; and for remote areas, it takes 5-7 days. These delivery times are for reference only and cannot be used as a reason for a refund.Thank you for your cooperation! Wishing you booming business and overflowing wealth! English version