Features: Multiple function buttons: switch input sources by pressing the buttons on the switcher, avoiding frequent plugging and unplugging. There are also volume controls and a one-touch mute button for easy use. High-quality material: Made of high-quality metal, strong and durable. Lightweight Size: Portable and compact size, easy to store and carry, bring you convenience. Easy to use: connect two audio sources (such as CD player/computer) to 1/2 port and one audio output (such as speaker) to IN/OUT port. Application: Good performance, convenient and practical, suitable for home and professional use. Note:1. Please allow a little error due to manual measurement. Please make sure you don't mind before bidding 2. Color may vary by monitor. Please understand that Note: Hello, please pay attention to your delivery address when purchasing the product. If your pickup information (e.g. name, street, house number, doorbell/email with no name) is incorrect, the order will not be delivered correctly. )