Acme dog whistle is a frequency-stable and durable dog whistle. The whistle has a clear tone and a long range. Due to the standardized sound, the whistle gives a consistent sound even if the whistle is different. Because of this, it can be used by several family members, and the dog recognizes the sound of the whistle. The Acme dog whistle is of high quality and holds the same sound for several years The 210.5 model has a very high frequency sound (5900hz) The product has a 12-month warranty
