PetSafe Indoor Ultrasonic Dog Bark Control - No Collar Needed - Up to 25 ft Range - Anti-Bark Pet Training System - Automatic with Manual Trainer Button

Pattern Dog Color White Material Plastic Brand PetSafe Item Display Dimensions 9 x 8 x 3 inches About this item FOR DOGS OF ANY SIZE: uses high-frequency sound that works to reduce excessive bark of dogs within hearing range; for dogs 6 months and older INDOOR RANGE: up to 25 foot range VERSATILE: you can use either freestanding or hand-held. Microphone detects barking to prevent false corrections TWO SETTINGS: you can set the unit to automatically emit the ultrasonic tone when your dog barks or press the manual button to correct inappropriate behavior "NO BARK GUARANTEE": some dogs may not be responsive to ultrasonic correction. If this product is not meeting your needs, please contact PetSafe; we’re available Monday through Saturday to answer your questions at PetSafe AVERAGE BATTERY LIFE 5-6 months: takes a 9-volt battery (not included) and will last up to 6 months depending on use From the manufacturer