Welcome to our store! This mini passive stereo mixer is a 4-channel device perfect for expanded control settings. No batteries or external power are needed. Connect to mixer outputs or other output devices; it can also function as a 1-in-4-out stereo splitter. Rotate clockwise to adjust the volume. Enjoy zero background noise and high sound quality thanks to its all-metal shell, which also provides superior anti-interference. Ideal for mixers, CD players, tape decks, computers, mobile phones, tablets, and more. Its compact and portable design lets you enjoy karaoke or speeches anywhere. Enjoy quick karaoke fun with ease! Item Type: Audio Mixer Product Material: Metal Product Color: Black Weight: Approx. 275g / 9.7oz Package Includes: 1 x Audio Mixer, 1 x Manual Guaranteed Satisfaction: Customer satisfaction is our top priority. If you encounter any issues with the product, please contact the seller immediately. We are committed to providing satisfactory after-sales service.