Automatically Avoid Obstacles Crab Toy: Equipped with the advanced induction obstacle avoidance function, when it encounters an obstacle during moving, it will move in the opposite direction in time, which is attractive with children to grab it and exercise children's coordination ability. Attractive Lights & Musical Toys: The crab toys will be playing a joyful music when the crawling crab toy runs with both eyes will light up, it will encourage baby to crawl to catch the crab, also it will improve the baby's hearing development. Safe and High-Quality Materials: The sensory crab toys are made of safe and durable high-quality non toxic ABS materials, and the edges are smooth without burrs after lots of polishing, will not hurt your child's skin and ensuring the baby's safety when playing, and also no peculiar smell can make the baby enjoy playing more. USB Charging Crawling Toys: Walking Crab has a built-in rechargeable lithium battery, which can run for 60 minutes without interruption after 2 hours of charging. It’s convenience to be charged by USB charger, computer, or power bank. (Charging cable is included.) Perfect Gift for Kids: The toys are moving, lighting and playing music for kids, It not only brings many surprises to children, but also stimulates children's creativity and imagination. It must be the best perfect Christmas and birthday gifts.