Acme Silent Dog Whistle – Training & Behaviour Aid

The 535 whistle has a variable single frequency between 5200 and 12800Hz to enable the user to choose and set the exact frequency required. This is suitable for all breeds of dog for close/medium and distance work. Although very loud to the dog, this sound is not able to be heard by the human user hence the “silent” label. However the whistle is engineered to produce a relatively quiet whistle sound audible in the human range the sole purpose of this is to reassure the user that a sound in the required range is being produced. The reason for this is that if the whistle is incorrectly set up when selecting the frequency then it will not function properly without this facility the user will not realise the whistle is not working.

Product Features

  • Acme Silent Dog Whistle (Model 535)
  • Silent dog whistle by Acme with adjustable frequency to suit your dogs hearing – Almost inaudible to humans
  • Great training aid – The whistle can be heard by dogs up to 400 yards
  • Solid brass construction with nickel plating
  • Acme is the leading quality brand for whistles – made in England

Click Here For More Information

66fit Anatomical Human Giant Ear Model – Medical Educational Training Aid

The 66fit giant model of the ear, for elementary science classes, shows the three main structural parts of the hearing organ (external ear, middle ear, internal ear) and the position of the equilibrium organ of human body.

Features:
1. External ear: Showing the shape of the auricle and the primary features of the external auditory meatus.
2. Middle ear: showing the tympanic membrane, the three auditory ossicles (hammer, anvil, stirrup) and the eustachian tube.
3. Internal ear: showing the vestibule, cochlea and the three semicircular canals of the osseous labyrinth.

This model is dissected into 6 parts.
5 times enlarged.
Mouted on plastic base
Size: 43x25x15cm

Brand: 66fit
Size: Giant Size
Dimensions: 43x25x15cm
Colour: As Shown In Picture
Main Material: PVC Plastic
Made In: China
Presented In: Plain Box
Packed Weight: 3.1kg

Product Features

  • Shows the three main structural parts of the hearing organ (external ear, middle ear, internal ear)
  • This model is dissected into 6 parts
  • 5 times enlarged
  • Mouted on plastic base
  • Size: 43x25x15cm

Click Here For More Information