This unit works automatically or can be manually activated and sends a strong ultrasonic signal to stop unwanted barking.

The inbuilt microphone will sense barking from large dogs up to 5 metres away while small dogs may have to be within 2 metres to trigger it.

Features and benefits Powerful ultrasonic tone is not audible to humans Compact 130x80x50mm.

unobtrusive unit for freestanding or wall mounted indoors use Can create bark free zones for one or more dogs inside your home Activated automatically by barking or manually via the push button control Replaceable 9v radio battery included 2years warranty 10 day money back guarantee to control nuisance barking/noise