Ultrasonic Dog Bark Deterrent for Indoor Use - Stop Excessive Barking with Safe, Humane Technology - Perfect for Apartments, Homes & Quiet Spaces

• Discourages nuisance barking; no bark collar needed
• Tabletop or handheld use
• Works on all dogs within hearing range; for dogs of any size
• Add extra units for coverage in multiple rooms
• Range up to 25 feet
• Water resistant
• Low battery indicator
• Measures 5 in W x 3 in H x 2 1/4 in D