The Nagaoka MP-300 phonograph cartridge offers sophistication, refinement and high-definition at all audible frequencies thus making it one of our favorite phonograph cartridges. It is nimble on the grooves and easy on the ears so you keep on wanting to listen. The Nagaoka MP300 is an advanced technology cartridge that is destined to become a classic out of the box. Features -Exclusive super rigid body for ultra resonance and superb fidelity -Superfine polished special eliptical bonded diamond stylus -Powerfull samarium cobalt magnet -Hardened low-mass, high strenght boron cantilever -Carbon fibre reinforced plastic shoe -Anti ferro magnetic permalloy shield casing Stylus replacement: Nagaoka JN-P300 The stylus replacement interval varies depending on the using conditions. But for general use at home, the reference time is between 150-200 hours in which the stylus begin to wear and the tone quality deteriorates. Recommend replacing the stylus as aerly as possible to enjoy clear tone for a long time and not to damge the disc grooves.