Fosi Audio VOL20 Bluetooth Volume Control Knob, RGB Lighting USB Multimed Controller for PC/Gaming/Desktop Multi-Function Button
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Specifications
- Brand Name
- linime
- High-concerned chemical
- None
- Maximum Power Per Channel
- NO POWER
- Origin
- Mainland China
- Package
- Yes
- Model Number
- VOL20
Product Description
Highlight
Material：Zinc Alloy
Connection Method：Bluetooth/USB
Bluetooth Connection Range：≥10m
Lighting Modes：Constant Light Mode/Light Off Mode/Auto-Off after 5 Seconds of Inactivity/Colorful Changing Mode
Lighting Colors：RGB
Battery Capacity：750mAh
Functions：Volume Up/Down; Previous Track; Next Track; Play/Pause; Mute/Unmute
Package Include:
*VOL20 Volume Control Knob
*USB-C Cable
*User Manual
Features
Multimedia Volume Knob: The VOL20 is a versatile desktop volume controller with Bluetooth wireless and USB-C connectivity, offering real-time volume adjustments. Perfect for music lovers, gamers, and professionals who demand precise volume control.
Multi-Functional: Simple yet versatile, the knob's button lets you easily control play, pause, previous track, next track, mute, and volume adjustment. With just one knob, you can conveniently manage all your music playback controls.
All-Metal Construction: Precisely crafted from zinc alloy using CNC machining, ensuring a premium feel and lasting durability. The large 55mm diameter design adds substantial weight, providing a stable and slip-free experience during operation.
RGB Lighting: Offers constant on, auto-off after 5 seconds, spectrum cycling, and off modes. Four modes at your fingertips—freely switch between colors and lighting modes to create the perfect ambiance just the way you like it.
Effortless Installation: Compatible with digital audio sources that support USB or Bluetooth peripherals, including PCs, Macs, laptops, mobile phones, tablets, digital audio players, and streamers. Simply plug and play with no complicated setup required.
Pros & Cons
Pros
- Premium zinc alloy construction for durable, long-lasting use
- Dual USB and Bluetooth connectivity for broad device compatibility
- Customizable RGB lighting with multiple display modes to match desktop aesthetics
- Hands-free media and volume controls for streamlined workflow
Cons
- No built-in audio amplification, so it relies on your device's existing audio output
- Partial product description leaves full media control functionality unclear
- 5-second auto-off lighting mode may be overly sensitive for regular use
- No included cables or mounting hardware for immediate setup
Common Questions
What materials are used to make this volume control knob?
It is constructed from zinc alloy for a durable, premium finished look and long-lasting daily use.
What are the physical dimensions of this volume controller?
Exact physical dimensions are not listed in the product details, but it is a compact desktop-sized controller suitable for most standard setups.
What devices and connection methods does this controller work with?
It supports both USB and Bluetooth connections, with a maximum Bluetooth range of at least 10 meters, and is compatible with PCs, gaming desktops, and other audio systems.
What functions does this volume controller provide?
It offers volume up/down controls, previous track, and next track functions for easy media and audio adjustment on your desktop or gaming setup.
What is included in the shipping package for this controller?
The standard package includes the Fosi Audio VOL20 volume controller, with no additional accessories like cables or mounting hardware noted in the product specs.
Product information last updated on January 15, 2026