Specification BatteriesIncluded : 1 BatteriesRequired : 1 Brand : ACME BulletPoint : item is a 3D printed whistle inspired by the ancient Aztec culture. BulletPoint1 : Acme Shepherd Whistle: For Sheep Trails and Herding. Preferred by shepherds, and companions of working dogs all over the world. Considered the ultimate tool for in-tune communication with your dog. BulletPoint2 : Variable Frequency: As an "in mouth" whistle, the only limitation in sound is based on wind pressure and the shape of one's mouth when creating air pressure, reaching up to 100 dBA. BulletPoint3 : Available in BPA Free Plastic to food grade standards in a variety of colours, Nickel Silver, Silver Plated, Gold Plated or Rose Gold Plated. BulletPoint4 : Product: Weight Metal 0.026Lb / 12g, BPA-free Plastic 0.009lb / 4g. Height 0.197 inches / 0.50cm. Width 1.457 inches / 3.70cm. Length 1.890 inches / 4.80cm. Pealess/Ball Free Dog Training Whistle BulletPoint5 : Genuine ACME Whistle made in the UK by specialists with over 150 years of experience. Color : Yellow Department : unisex-child ExternallyAssignedProductIdentifier : 4552474212749 ExternallyAssignedProductIdentifier1 : 717668157600 ExternallyAssignedProductIdentifier2 : 0717668157600 ExternallyAssignedProductIdentifier3 : 0085288689093 ExternallyAssignedProductIdentifier4 : 0085288689031 ExternallyAssignedProductIdentifier5 : 00085288689031 FinishType : Painted GpsrSafetyAttestation : 1 ImportDesignation : Imported IncludedComponents : Whistle IncludedComponents1 : adjustable whistle lanyard IncludedComponents2 : Battery InstrumentKey : A ItemDisplayDimensions_Height : 1.5 centimeters ItemDisplayDimensions_Length : 14.5 centimeters ItemDisplayDimensions_Width : 7 centimeters ItemDisplayWeight : 0.02 pounds ItemName : ACME No. 576 Professional Dog Training Shepherd's Lip, in Mouth, Whistle. Quality Crescendo of Sound. Sheep Trails and Herding. 100 dBA. Designed and Made in The UK (Yellow) ItemPackageDimensions_Height : 14.2 centimeters ItemPackageDimensions_Length : 1.2 centimeters ItemPackageDimensions_Width : 7 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : coach-and-referee-whistles Manufacturer : J Hudson & Co (Whistles) Ltd Material : Plastic ModelName : 576/575 ModelNumber : 576/575 NumberOfBoxes : 1 NumberOfItems : 1 PackageLevel : unit PartNumber : 576/575 Pattern : Solid ProductDescription : Genuine ACME Shepherd's lip, in mouth, Dog Training Whistle No. 575/576 Preferred by shepherds, and companions of working dogs all over the world. For Sheep Trails and Herding. Considered the ultimate tool for in-tune communication with your dog. This professional model allows the dog trainer to create a crescendo of sound in a wide variety of frequencies. Variable Frequency: As an "in mouth" whistle, the only limitation in sound is based on wind pressure and the shape of one's mouth when creating air pressure, reaching up to 100 dBA. Made for both the working person and the working dog, it fosters a harmonious relationship between owner and companion. Instructions: 1. Place whistle in mouth with the curved open edge facing outwards resting on your tongue. 2. Hold in the mouth in such a way as to create a gap underneath the whistle. The back of the whistle will sit on the back of the tongue. 3. Blow and by varying the blow, you will create different sounds. 4. To create an even wider range of sounds, move the tongue up and down reducing and widening the gap underneath the whistle. N.B. if you place your tongue against the lower hole, you will silence the whistle. It doesn’t matter which way up the whistle is placed. This whistle does require a few practice blows before you get a sound, but once one sound is achieved, it is plain sailing or whistling. Available in BPA Free Plastic to food grade standards in a variety of colours, Nickel Silver, Silver Plated, Gold Plated or Rose Gold Plated. Product: Weight Metal 0.026Lb / 12g, Plastic 0.009lb / 4g Height 0.197 inches / 0.50cm. Width 1.457 inches / 3.70cm. Length 1.890 inches / 4.80cm. Pealess/Ball Free Dog Training Whistle Care: Ensure whistle is clean and dry before storage. Clean with warm water. Store out of direct sunlight. Genuine ACME Whistle made in the UK by specialists with over 150 years of experience. Part of THE ACME range of high-quality whistles sold here on Amazon. Check out THE ACME store for more. ProductSiteLaunchDate : 2016-08-24T07:21:22.002Z Range : ALTO Size : One Size SkipOffer : 1 StreetDate : 2017-07-20T00:00:01Z Style : Classic SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 1 UnspscCode : 10111300 WarrantyDescription : Manufacturers warranty.