I'm selling this because I received it as a gift but don't need it. It has been stored in a dark place. Please check the images. PetSafe Bark Control PetSafe Bark Control Indoor For those troubled by their dog's excessive barking. I bought this for my dog, but I no longer need it. The microphone detects barking and automatically emits a high-frequency sound. Also, if your dog misbehaves, you can manually emit the high-frequency sound by pressing the manual operation button on the top of the product. Operation has been confirmed. There is some discoloration, so please check the condition in the photos and purchase with your understanding. I am not responsible for any shipping accidents. Due to the prevention of complaints and product switching after purchase, returns are not accepted, so please understand this as well. Radio Systems Bark Control Richell Richell Excessive barking Unnecessary barking Ultrasonic Indoor Pet Pet supplies Dog Dog