<b>About PETGEEK</b><br>Love pet, live smart. PETGEEK is a high-tech and caring pet brand. With this vision, we gathered a group of experts who have geek spirit and also care a lot about their pets. And we set out a mission dedicated to offering a smarter and happier lifestyle for our pets, to exploring the new possibilities for pets.<br>PETGEEK production process pursues the world standards and have passed ISO9001 Quality System Certification.<br><b>PETGEEK Smart Bone-Model K90759D</b><br>Size: 8.1 inches in length, 2.5 inches in wheel diameter, 4.6 inches in tail length<br>Material: TPR/PC+Rubber<br>Battery Type: Polymer Lithium-Ion<br>Battery Capacity: 850 mAh<br>Charging Time: 1.5-2 hours<br>Working Time per Charge: 2 hours<br><b>Notes:</b><br>1.The dog entertainment toys for alone is especially designed for pets, not for children<br>2.Not a chew toy. Do not provide it for heavy chewers. Please prevent your pet <br>from chewing the USB cable to avoid electrical shock when it’s plugged in. <br>Always unplug it when you finish the charging<br>3.The power core part is not washable<br>4.Check the device regularly, in case the core is damaged and the electrical power will hurt your dog<br>5.It is recommended to use the device where the ambient temperature is between 0 degree Celsius and 50 degrees Celsius.