Thank you for viewing! ☆(=^ェ^=)☆ ❤️ Price negotiation → Highly welcome ⭐️ First-come, first-served ⭐️ Initial defect warranty included 【Description】 Switch with one key. There is a manual switch on the side, allowing you to switch audio output between speakers and headphones without re-plugging the headset. One large volume control knob With an excellent size and a very good smooth feel, you can freely control the volume of your computer speakers and headphones. Microphone function You can chat online and play games to achieve real-time communication. Lossless sound quality Extends the life of the APLS potentiometer and designs an independent microphone circuit to avoid interference with the speaker circuit and ensure audio quality. Strong compatibility Can be used with Windows / Mac systems, and some native Android devices. 【Connection Method】 Three-color plugs Red: Computer microphone Green: Computer audio output port Black: External speaker Two ports Green: Headset Red: Headset microphone cable ⚠️Caution⚠️ 1. Do not use this product in a humid environment. 2. This volume controller is not suitable for the following speakers: ★ Wire-controlled speakers with three types of ports: VGA/S terminal/3.5mm 4-stage jack ★ Wire-controlled speakers with a power indicator ❤️ We also have many other wonderful products for sale ↓ Further discounts are available for bulk purchases (=^x^=)↓ #Hana'sShop Management number 2-86$$980