Features: 1. Home sound machine: Squeeze the device to release air and produce a realistic sound effect. 2. Simple operation: Place the open end upward on your palm, position the vent opening about 2-3 cm from the base of your thumb, and firmly squeeze the device. 3. Multiple sound effects: Adjust the position and squeezing speed to create different sound variations. 4. Fun toy: Use for light-hearted pranks and entertainment; adds humor and fun to everyday moments. A unique and amusing item to enjoy. 5. Practice makes perfect: This squeezing toy requires practice to master. The more you use it, the better you become. This product is a sound-effect device designed to produce humorous audio effects, ideal for fun and entertainment. Specifications: Size: 2.5 x 8 x 8 cm Weight: 68 g Applicable age: 9-15 years old Color: Black Package Included: 1 * Sound-effect device Notes: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated the same, item color displayed in photos may be slightly different from the actual object.