· This 'silent' whistle is ideal for indoor / outdoor use, particularly suitable for noise sensitive breeds such as border collies 
· Made from tough steel, this lightweight design provides a clear whistle, which is just audible to the human ear, essential for gauging efficacy 
· Adjustable pitch to get the precise frequency for your dog, with a keyring attachment 
· Free training guide, featuring tips and easy to follow instructions included in every pack

Company Of Animals Clix Silent Whistle