* Suitable for children over 3 years old * Only suitable for daily wear * Non-removable, non-replaceable battery, non-rechargeable, non-water inflow * Material: Plastic mirror & TPE strap * Usage: Press and hold the button for 3 seconds in the \"time mode\" to enter the setting mode, the \"clock\" number flashes, click the button to modify the current value; Continue to hold the button for 3 seconds to change the setting items, select \"hour\", \"minute\" in turn , \"Year\", \"Month\", \"Day\" and other items, under each item, click the button to modify. * Imported