High quality&Wide Coverage:This product uses dual-channel super-driven dog, double-headed dog, laser drive snake, drive cat, lighting function in one of the super-acoustic drive.Emits piercing ultrasonic tone that dogs hate and make dogs away from people. IMPROVE THE EFFICIENCY OF TRAINING DOG:The ultrasonic anti barking device combines dog training and bark control. The ultrasonic anti barking device can effectively trains your dogs to stop unwanted behaviors, barking, digging, eat something dirty or fight. SAFE AND HUMANE:Pet gentle ultrasonic handheld uses physical methods to stimulate dogs and has no effect on dogs health,thus being the most humane way to protect yourself from aggressive dogs.It can also be used as dog training device. Battery: You need to bring your own 9V battery,Package include: 1 x Ultrasonic Dog Trainer, 1 x User Manual, not including battery. Due to reasons such as shooting, display and light, product pictures may have different degrees of slight color difference on different monitors About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.