Stop Dog BarkingWith The Latest Ultrasonic Technology, The Training Device Is Suitable For Dogs Of All Breeds And Sizes, The Ultrasonic Frequency Is Safe For Animals And Has No Effect On Dogs. Human Ears. Safe And Cruelty-Free Way To Stop Your Dog And Your Neighbor'S Dog From Barking. It Can Be Used As A Dog Repellent Device And Dog Training Aid Tool To Stop Bad Behavior, Such As Endless Barking, Digging And Fighting.Rechargeable Anti-Bark Device: Our New Ultrasonic Version For Dogs Makes It Easier To Train Your Dog. Comes With The Usb Cable, The Bark Stopper Can Be Fully Charged In 5 Hours, And In Most Cases, Our Dog Bark Device Can Work Continuously For 15 Days, But The Actual Using Time Depends On Your Frequency Of Use And Your Time Of Use. Compared With Other Similar Products Which Require Batteries, Our Products Are More Environmentally Friendly And Save Money. Barking Is Up To 5M, Emits 24Khz Ultrasonic Sound, And This Sound Does Not Affect Human (20Khz Hearing Limit). With The Sound Signal And Ultrasonic, It Can Easily Attract Dogs' Attention And Improve Their Bad Behaviors. Regular Training Is Necessary To Achieve Effective And Long-Lasting Results.Perfect For Indoor And Outdoor Use: This Dog Bark Control Device Is Lightweight And Fits Perfectly In Your Pocket, Suitable For Outdoor Use. Indoors And Outdoors. With A Wrist Strap, It Was Designed To Be Convenient To Carry With You. Press The Button Of This Bark Control Device, It Will Emit Ultrasonic Sound, Meanwhile, Green Light Indicates The Device Is Working, Red Light Indicates The Device Needs To Be Charged.Tips For Use : Whenever Your Dog Is Messing Up: Just Press The Button And Point The Ultrasonic Clicker Directly At Him. Once He Reacts Positively, Please Praise And Reward Him To Strengthen His Memory. We Are Committed To Providing The Best Service To Customers. If You Are Not Satisfied, Do Not Hesitate To Contact Us, We Will Solve Your Problem Within 24 Hours.