| Model | Frequency | Recommended Use |
 535 | Variable single frequency dog whistles 5200 - 12800 Hz | All breeds and for all purposes. Distance, medium and close work. The ultimate dog whistle enables you to choose and fix your own exact frequency. Includes training guide. |
 210 | 4750 - 5250 Hz varying pea dog whistles
 | All dogs, good for distance and close work. Especially well proven with Spaniels |
 210.5 | Single frequency (5900 Hz) dog whistles, frequency varying +/- 20% on blowing
 | All dogs, especially older or hard of hearing dogs. The best of the range for close work. Good sound at gentle blowing. Especially effective with Spaniels |
 211.5 | Single frequency (4850 Hz) dog whistles, frequency varying +/- 20% on blowing
 | All dogs, good alternative command to the above two models. The preferred Labrador and Retriever whistle. |
 212 | Single frequency (5050 Hz) dog whistles, frequency varying only +/- 5% on blowing
 | Specially controlled frequency. Hard or gentle breath pressure hardly affects the frequency, a great advantage in competitons or for highly trained dogs. One of the best if you only want one whistle. |
 640 | Variable pea 3500 - 3150 Hz dog whistles, plus a single frequency 4000 Hz dog whistle
 | A combination whistle that is ideal for dogs with longer ear channels e.g. Pointer, Labrador, Weimaraner, Doberman and German Shepherd. |
 641 | pea dog whistle at 3600hz, plus a single frequency whistle at 5400hz
 | A small version of the 640 and the preferred whistle for European breeds such as the Doberman and Weimaraner |
 642 | Variable pea 3150 - 3500 Hz dog whistle plus a single frequency 4000 Hz whistle
 | Combines two dog whistles to give excellent all round performance |
 560 | Pea whistle with medium pitch (plastic) | General purpose whistle, easy to blow and very loud |