TrustyPup Silent Squeak Technology™ dog toys are durable squeaky plush toys that only your dog can hear. With all the fun of a traditional squeaker TrustyPup squeakers are tuned an ultrasonic frequency between 24 and 28 KHz that is silent to people but not dogs. The soft and cuddly Platypus provides wild fun for your dog without disturbing you! TrustyPup toys, beds and travel products are designed with the family in mind. We were the first major brand to bring human grade, premium fill materials combined with home decor style and fabrics into pet bedding. Innovation, environmental concerns, your pet’s comfort, safety and enrichment are top among our concerns. Our products are designed for a fun, healthy and engaged, stimulated and well rested pet. Testing to child safety standards and utilizing environmentally friendly, sustainable materials wherever we can, drives us daily. Backed by our 100percent satisfaction guarantee pet parents can rest easy with TrustyPup products! Read all packaging instructions, warnings and cautions upon receipt. Read all packaging instructions, warnings and cautions upon receipt. Packaging contains small parts, discard after opening. Gender: unisex.