1. Strong construction: the USB volume control is made of metal shell and ALPS rotary shaft, equipped with breathing light and 1.5m USB cable. 2. One key mute function: when you are listening to music, just press the knob, it will stop at once and back to music when you press again. 3. Once you connect it to computer by USB cable, it will start to work. 4. A great volume control tool for watching videos, playing games, wedding, meeting, celebration and other activities. 5. Easy operation: - Turning the knob to turn up and down volume - Press the knob to make it mute - Press down the knob and turn it to adjust volume more quickly - Keep pressing the knob for 8s, it will enter night mode, and breathing light will stay on. 6. Size: 6.5*5.5*4.5cm 7. Weight: 350g
