The Flux-Sonic Stylus Cleaner is designed to gently, safely and quickly remove hardened dirt from the stylus of a phono cartridge. It's targeted ultrasonic vibration ensures residue-free cleaning in only 15 seconds and the stylus need not be removed for this purpose. Flux-Sonic can be applied as often as desired, it is recommended for use before each playback session and will keep your stylus looking brand-new, even under a microscope!