The 40kHz Ultrasonic Cutter Knife is a handheld tool that operates at a high frequency of 40,000 Hz, allowing for precise and clean cutting through various materials. It comes with a storage bag and 5 batteries included, making it convenient for on-the-go use. This ultrasonic knife, weighing only 1.26 pounds, is designed for ease of handling and efficiency in cutting tasks. The package dimensions are 9.02 x 5.31 x 3.5 inches, ensuring compactness for portability. This product, made in the United States, also comes with an adapter for added versatility.