C&J Pet Supplies Ultrasonic Dog Repellent & Alarm This small electronic dog repeller is designed to stop and control a dog from barking and scare them away from you in case of a dog attack. This device can release a strong 122dB alarm sound to draw attention and prevent thieves and burglars from attacking you. Perfect for women, vacationing or people who work at night. This product also comes with a flashing light, unlike other dog deterrents so it has several uses from just one ultrasonic dog trainer. Comes with 1 yr manufacturer warranty. Comes with rechargeable cable, carrying strap, and a power adapter. Check out the images on the listing for special discounts and promotions.