Using the most advanced technology, Math N' SecretsTM Tech Bracelet is developed with extreme precision to make learning more fun than ever before! Oregon Scientific focuses on the unique interactive qualities of our products, which make invaluable contributions to childhood development. The Math N' SecretsTM Tech Bracelet brings the world of interactive learning to your child's fingertips. With Math N' SecretsTM Tech Bracelet your child can embark on interactive learning the BarbieTM way! They will develop addition and subtraction math skills as well as learn fun vocabulary words. Stimulating animations exciting sound effects and an animated Barbie® character make learning math totally fun! The added digital/ analog time feature allows your child to keep track of time in fashion! When it comes to developing your child's mind, Oregon Scientific products will help them achieve their maximum potential. Instructions Addition button Reset button Short animation button 1 2 Subtraction button 3 4 Time display button LCD screen When purchased, the Math N' SecretsTM Tech Bracelet is in "try me" mode for demonstration purposes. Use the tip of a pencil to press the "re-set" button located between the "addition" and "animation" buttons, on the left side of the device. Your Math N' SecretsTM Tech Bracelet operates a CR2032 batteries (included). If the display or sound is weak and unclear, please replace the batteries as indicated (see "Battery Replacement"). Batteries included are for store demonstration purposes only, please replace after purchase. Initial activation To set the time, press and hold the "animation" button ( 3 lower left side). Digital display will be shown, and hours begin flashing...