Nobsound MV-01/DV-01 Passive Volume Controller Knob for PC Amplifier Speaker Line Audio Adjuster BOX with LED Light

Comparison Model MV-01 DV-01 Audio input 3.5mm USB(Type-c) Audio output 3.5mm(support to connect other devices) / LED Light Not Support Support (6 colors) One-click Mute Not Support Support Fast/Slow adjustment Not Support Support(Fast mode: 6 levels each time; Slow mode: 2 levels each time) Switch songs Not Support Support Warm tips: MV-01 only can be used as a volume controller. MV-01 volume knob can also adjust headphone's volume (but without any amplification function), the headphones of impedance between 32-300Ω can be controlled better. Features MV-01 Nobsound MV-01 volume controller, the base adopts solid aluminum alloy and CNC machined, high-precision sealed step potentiometer, 3.5mm I/O interface with gold-plated pins etc., control the volume from your audio device losslessly. Standard 3.5mm interface with stronger compatibility, 3.5mm IN can connect to tablet PC, computer, phone, audio player etc., and 3.5mm OUT connects to amplifiers, active speaker, headphone amplifiers, headphones etc. Compact size with delicate appearance, black metal case looks fashionable and durable, very smooth rotation and good hand feelings; passive design, reduce the influence on sound quality to a minimum.  Complete accessories for multiple scenarios use, comes with 1× non-slip mat to increase the friction between MV-01 and desktop and placed firmly, and with 2× double-sided adhesive, convenient to stick to any place, DV-01 DV-01 Volume Controller, with a Type-C input interface, is compatible with a wide range of devices including phones, computers, tablets, and audio players. One-touch mute function, allowing for immediate silence whenever necessary. Unique LED light, provides 6 color options, and also with a dynamic breathing light mode, every volume leap is accompanied by graceful changes in light and shadow, adding a lively and cool touch to your music experience. With fast adjustment and slow adjustment. (Slow mode adjusts by 2 levels each time, while fast mode adjusts by 6 levels each time.) Both modes allows for smooth volume-level transitions tailored to individual preferences. Support switch between previous and next songs, convenient to use. Adopts black aluminum alloy shell, sturdy and durable. Listening to music, playing games, or attending ceremonies DV-01 is always a good choice. Parameters Model MV-01 DV-01 Audio input 3.5mm jack USB(Type-c) Audio output 3.5mm jack / Height 34mm / 1.34in Diameter 47mm / 1.85in Package dimensions 88*75*63mm / 3.46*2.95*2.48in Net weight 59g / 0.13lb 60g / 0.13lb Package weight 100g / 0.22lb 200g / 0.44lb   Packing List 1× Volume Controller(Optional) 1× USB Cable(only for DV-01 version) 1× Non-slip Mat 2× 3M Double-sided Adhesive