Passive Stereo Volume Controller , Mute Control Large Volume Knob Passive Monitor Controller XLR and 3 for . 5mm Interface Plug and Play for Laptop electronics_best_sellers_May2024 you can power the fan

you can power the fan through a wall outlet and set the speed freely to optimal noise and airflow

BUT carbon fiber rod DON'T

Multi-functional

it can be inserted either way

Notice: 2 AAA batteries need to be prepared by yourself

Passive Stereo Volume Controller , Mute Control Large Volume Knob Passive Monitor Controller XLR and 3 for . 5mm Interface Plug and Play for Laptop electronics_best_sellers_May2024 you can power the fanPassive Stereo Volume Controller , Mute Control Large Volume Knob Passive Monitor Controller XLR and 3 for . 5mm Interface Plug and Play for Laptop Product Features Unadulterated Signal Our passive stereo monitor controller boasts a pure signal, thanks to its passive circuitry . This ensures that your audio signal remains pristine and unaltered , leading to superior results and sound quality . Precision Control Knob : The controller features a