Multifunctional children's digital watch: LED backlight, alarm clock, timer, stopwatch timer, high-quality electronic movement, with Japanese battery. These characteristics make this boy's digital watch suitable for various indoor and outdoor sports.Imported PC material shell, hard and durable, stainless steel buckle, free buckle, convenient and comfortable, German high-quality PU strap, soft and comfortable, high elastic polyurethane protective adhesive, effectively protecting the wrist, shockproof,High transparent resin mirror surface, made of imported high transparent resin, with strong hardness, pressure resistance, imported high-frequency welding technology, and good waterproof performance164 feet/50 meters waterproof, suitable for daily use. Your child can wear this watch to wash their hands or play on rainy days. Attention: Please do not press any buttons in the water or wear them during prolonged underwater activitiesSize L: total length 255mm, 57*50*17mmSize S: total length 250mm, 48*43*16mm