- 360° Rotatable USB Computer Volume Controller: Enjoy precise audio control with a 360° rotatable knob that allows for easy volume adjustments. The one-touch mute function gives you immediate silence when you need it. - Bluetooth USB Volume Knob for PC: Featuring a Bluetooth 5.1 chip, this volume controller pairs effortlessly with Bluetooth-enabled headphones or speakers. Experience hassle-free wireless listening with a quick and stable connection. - USB Decoding Player: This versatile U disk player supports multiple audio formats, including MP3, WAV, WMA, APE, and FLAC. With features like fast forward, rewind, and folder switching, you can tailor your music experience to your preferences. - External Sound Card Adapter: In external sound card mode, simply plug your headphones into the 3.5mm jack to enjoy sound from your computer without the need to reach behind your desk. Key Benefits: - Simplifies audio control with a user-friendly design. - Enhances your listening experience by enabling wireless connections. - Supports a variety of audio formats for versatile playback options. - Eliminates the hassle of accessing hard-to-reach headphone jacks. Use Scenarios: 1. Ideal for gamers who need quick access to volume controls and mute options during intense gameplay. 2. Perfect for music enthusiasts who want to enjoy their audio library with high compatibility and easy navigation. 3. Great for office use, allowing for easy switching between speakers and headphones without the need for complicated setups.