The Acme 210.5 is the go-to whistle for Spaniel handlers. Its high-pitched tone cuts through cover, carries clearly at close range, and gives you the precision you need when your dog is working tight to the line. Frequency-standardised, so if you ever lose one, a replacement will sound identical to your dog. Simple, reliable, and trusted by handlers across the country. Pairs perfectly with the Byron Gundogs Lanyard.