For outdoor activities: An essential item for camping, hunting, mountaineering, running, hiking, etc. High efficiency: 7-band ultrasonic infinite loop scan (13-25 KHz / 26-35 KHz / 36-45 KHz / 46-55 KHz / 56-65 KHz / 66-75 KHz / 76-95 KHz) .The Variable frequency band will return every 2 seconds and all frequencies can work together. Safer to use: Ultrasonic sound is inaudible to humans and household pets. It is 100% safe and effective. Rechargeable battery: The lithium battery is recharged by using a micro USB cable in the package. Portable design: It comes with a hook, you can hang it outdoors. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''''''''''''''''''''''''''''''''t hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it!