Need more than 1? Choose the number of sets in the dropdown to receive a bulk buy discount up to 20% off Dog Bark Control And Dog Traning - The Ultrasonic Bark Control Device Combines Dog Training And Bark Control. The Anti Bark Device Can Effectively Train Your Dogs To Stop Unwanted Behaviours, Barking, Digging, Eat Something Dirty Or Fight. 100% Safe To You And Dogs Average Human Hearing Frequency Range Is 20Hz20Khz, And The Dog Can Hear A Wider Range From 15Hz To 120Khz. Modus Ultrasonic Bark Control Emits Ultrasonic Sound At 25Khz, So The Sound Doesn't Affect Anyone. Convenient To Use Outdoor - Modus Ultrasonic Dog Trainer Comes W/ An Adjustable Anti-Static Wrist Strap. The Ultrasonic Bark Control Has A Green Led Light Indicator When Working. Powered By 4 Aaa Batteries (Included). The Control Range Of Modus Bark Control Is 16.4Ft. Easy To Use When You Push The Button Of Modus Ultrasonic Bark Control, It Will Emit An Ultrasonic Sound Which Can Only Be Heard By The Dog. At The Same Time, The Green Light Will Show The Modus Anti Bark Device Is Working. Press The Button For 10 Seconds, The Green Light Will Go Out And The Dog Trainer Will Turn Off.