The PetSafe Indoor Bark Control helps control your dog's barking by emitting a high-pitched sound when your dog starts to bark.  The ultrasonic sound will interrupt the barking cycle and is designed to startle not harm your dog.  The sound can't be heard by humans, so it wont bother you, your family or neighbors, only the dogs!  Convenient to use-it sits on a table or can be attached to the wall with the enclosed adhesive hooks.  

Features

• Device emits a high-pitched ultrasonic tone that only dogs can hear
• No collar needed
• Can stand by itself on counter or table
• Can be attached to windows, walls or door frames with adhesive hooks (included)
• Microphone sensor built-in for barking detection 
• Detects barks up to 25 feet away
• Low battery status light
• Functions off two CR2032 batteries (included)
• Battery life lasts up to 6 months (approx. 2000 activations)
• One year warranty

Box Includes

• Ultrasonic bark control unit
• 2 batteries CR2032
• Loop/hook fasteners with adhesive
• Instruction manual