Item Type: Crawling crab octopus toy Material: Plastic, electronic components Product Size: Approx. 25 x 12 x 11cm / 9.84 x 4.72 x 4.33in Electric Crab Battery: 3.7V lithium battery 100mAh (built in) Charging Time: About 15 minutes Working Time: About 12 minutes. Package List 1 x Crawling Crab Octopus Toy 1 x USB Charging Cable Please do not use this toy in water or wet environment. 1[Multifunctional] The electric octopus has infrared sensor, which can move back and forth according to the child's thoughts, and can exercise the child's walking ability. 2[Music Octopus Toy] Has the functions of LED light crawling and sensor obstacle avoidance. When it encounters obstacles during the movement, it will move in the opposite direction in time. 3[Rechargeable Battery] Built in lithium battery and USB charging cable make it very convenient to charge through charger, computer and charging treasure. Please make sure that the toy is turned off during charging. 4[Perfect Gift] children music octopus toy will be the best gift for children's birthdays, Christmas, Halloween, Thanksgiving. Stimulate children's creativity and imagination. 5[Safety Material] Made with ABS, which is environmentally friendly, fall proof, safe and odorless, and can accompany children for a longer time.