Waterproof ultrasonic vibrating anti-barking dog collar, one size fits all

General Description This ultrasonic anti-bark collar is designed to help control your dog's barking gently and effectively. It emits ultrasonic and audible alarms when your dog barks, helping to calm them down. With its ultra-lightweight casing and retractable neck strap, it is suitable for all dog breeds. It is also waterproof, making it ideal even in rainy weather. Technical Specifications Dimensions: 65 x 15 x 65 mm Battery Type: 2 AG10 button cell batteries (included) Sensitivity Settings: HIGH and LOW Modes: Ultrasonic and Audible Installation Unscrew the back cover and insert the two AG10 button cell batteries. Close the back cover securely. Press the ON/OFF button to turn on the collar. Operation The red indicator light illuminates to show that the collar is working. Adjust the audio control according to your dog's situation. To activate the ultrasonic mode, press the ULTRASONIC button. To switch to sound mode, press the AUDIBLE button. Test the function by gently tapping the small silver circle on the back of the collar while in AUDIBLE mode.