2 pcs Animal utensils:1x Bird's nest & 1x dog training whistle[Natural Material]Our bird house is made of natural straw material, harmless for small animals, very durable to use.[Hanging Design]Easy and portable to hang with the hook on the top of bird nest, can be hung in the trees, eaves, walls, attracting birds into nests nest, to your home and add fun environment.[Comfortable Bird Nest]Keep your parrots or birds away from the cold, especially in winter, provide your birds a comfortable and warm home.[Compact Size & Light Weight]Caliber Size: Approx. 8.5 cm / 3.3 inch, suitable for parrot, rat, hamster, guinea pig or other small birds and furry animals.[Great Decoration]This bird house can also be great decoration for home, garden, bars, cafes and so on, a creative photo prop for children or other scenes as well.suitable for long distancesOperating Range up to 200mDogs mainly react to tones and acoustical signals but not to speech.They learn easier when the tones and acoustical signals are the same.The pitch can be set by adjusting the set screw located under the plastic cap.Silent Whistles made of metal are available with and without frequency protection.Dogs hear in a different frequency range to human beings.You can profit from this when you use whistles with sounds in such a high frequency range that humans do not hear or almost do not hear the whistling.The constant frequency (individually adjustable with the frequency protection) guarantees that your dog gets clearly transmitted orders.Variations in your voice (e.g. nervous vibrations) which could confuse your dog are avoided that way.At the same time you prevent any people nearby becoming annoyed by loud noises.Details: x metal x with frequency protection x individually tunable x avoids disturbances x with ring for fixing a cordTip: The best training results are achieved when dog and master are having fun during the training and feel experiences of success.A ground rule is: Correct behaviour has to be rewarded and consequently repeatedItem Type: Straw Bird NestColour:Photo ColorMaterial:StrawSize:21x18x8.5cmPackage Contents:1x Bird's nest1x dog training whistleOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.