This light, comfortable collar utilizes Nano Technology, resulting in the smallest anit-bark collar possible for your dog. the PetSafe Spray Bark Control collar uses patented perfect bark detection, ensures that your dog's bark is the only sound that will cause the collar to issue a correction. When the dog barks, the collar will release a brust of lemon-scented spray that the dog will dislike. The spray is not harmful to humans or animals. This spray bark dog collar can help you modify and refine your dog's behavior without the use of static.

Features:

• Adjustable collar with QuickFit buck will fit dogs with neck sizes up to 28 inches.
• Nano Technology allows the collar to fit the most smallest dogs
• Waterproof
• Uses vibration sensor, and Patented Perfect Bark detection allows for bark correction
• Two color battery indicator
• Uses 6-volt battery included (RFA-16-11)
• All natural, lemon scent is safe and effecitve. Lemon spray refill (RFA-164-19)
• Low spray indicator included
• Emits up to 80 sprays per refill
• Correction cannot be set off by another dog
• Lifetime Limited Warranty

Product Specs: Collar - 1.5H x 2W x 1.5D, weight -3.2 oz.