ACME whistle 210 with trill + lanyard free - easy blowing, high tone dog whistle, fitted with solid, waterproof pearl, to give a trill for those who want a distinctive and different sound. With a frequency that fluctuates by 4750-5250 Hertz. Recommended for close work and Spaniels.
Frequency: 4750-5250 Hz (variable pea)
Colors: black, orange