INTELLIGENT & AUTOMATIC : When you press the switch to the automatic dog toy , It will guide your dog to chase , tease and avoid . The dog's hunting instinct will also be satisfied because of the interactive bone toy . GOOD PARTNER : When you have to leave your dog alone at home , this electronic dog toy will keeps your baby away from feeling lonely . SAFE MATERIAL: We choose PC&TPE as the material of the durable wishbone dog chew toy , which is strong and soft , quick and easy to clean . This interactive toy is also a great way to protect your dog's teeth and claws while he chases them . EASY TO USE: Just press on/off button of auto dog toy , put it on the ground after the power indicator lights green , and pat to activate it (it will go into standby mode after 10 to 15 seconds ) , It would move again after being patted. DURABLE BATTERY: PETGEEK automatic & interactive bone toy has a working voltage of 3.7V / Wattage 1.5W and a built-in lithium-ion polymer battery . Its capacity is 850 mAhs . It is equipped with an U.S.B cable for charging and it could last at least 2 hours in interactive mode after 1.5-2 hours charging . Please turn the device off before recharging . WARM TIP:We guarantee that our electric dog toys will remain in a brand new state .