ACME Silent Dog Whistle - Nickel Plated
- The ultimate "silent" dog whistle, using the original patented design by ACME's founder's son in 1935.
- Almost inaudible to humans but loud to dogs.
- Special air directors ensure control the frequency produced and ensure that the sound travels up to 1.5km.
- Adjustable through a wide range of frequencies via a simple screw piston mechanism, so it can be altered to suit your own dog or different breeds.
- Comes with chain lanyard for easy access.
- Instructional booklet included.