Acme Dog Whistle 210.5
The 210.5 is ideally suited to Spaniels with a single frequency of 5900Hz. It is the best whistle for close work and for dogs who suffer from hard of hearing.
High pitch, quiet to the user, preferred by Spaniel owners but an excellent all-round dog whistle for close and distance control. Single frequency. This whistle is recommended for both use in Town and the Countryside .