30 metres waterproof: suitable for all kinds of sports, indoor and outdoor activities or daily use (except sauna, bathing, diving). NOTE: Do not press any buttons under water. NUMBERS ARE CLEAR AND EASY TO READ: Stylish large dial design and clear numeric dial make the time on the watch clear at a glance. With imported EL lamp, it can show the time clearly in the dark and is easy to set. GIFT: It's a perfect gift for family and friends, especially suitable for children, teenagers and adults. EASY MAINTENANCE: The case and strap of the student electronic watch are made of durable materials, easy to clean and maintain, not easily affected by sewage, dirt and so on. Multi-functional: Student electronic watches also have other functions such as alarm clock, timer, stopwatch, etc., which are convenient for students to use in their daily life. DURABLE: Student electronic watches are usually made of sturdy plastic casing and durable straps to stand up to students' wear and tear. Transparent and durable glass resin mirror with excellent wear resistance. COMFORTABLE AND FASHIONABLE: Sporty and fashionable design, simple and generous, suitable for both indoor and outdoor, giving you a perfect wearing experience.