ACME Dog Whistle 210.5 (Black, Orange, Lime Green, Yellow, Pink, Coral, Purple, Baby Blue, Red and Green)
 
High pitch, quiet to the user, preferred by Spaniel owners but an excellent all-round dog whistle for close and distance control.
 
Single frequency of 5900Hz.
 
This whistle is recommended for both use in Town and the Countryside .
 
It is the best whistle for close work and for dogs who suffer from hard of hearing.