The stylus is a worn-out product, and its normal service life is about 300-400 hours. Except for damage caused by careless operation, the use of excessive needle pressure, shoddy inferior records and severely shaking turntables shorten the life of the needle tip. As the radius of curvature of the sharpened needle tip becomes larger, its ability to track high-frequency signals in the sound groove decreases. When the sound details are reduced, the treble is gradually poor, and the sound becomes more and more dull, you need to consider replacing the Our phono needles feature an oval tip design and are made of hardened diamond. In the process of use can be more deeply affixed to the inner wall of the track, so as to pick up the most minute details of the track, to that the playback sound full, rich and layered. Natural and delicate sound can be played. Note that the stylus is relatively small, when installing it, hold the side of the stylus and do not touch the tip. First remove the old stylus. Remove the new stylus and hold it by the side, insert the tab on the stylus into the slot at the bottom of the cassette and swing the stylus body upwards to that there is no space between the top of the stylus and the head of the cassette and the installation is complete. Output voltage:4.2 mV Frequency response:20Hz-20kHz Channel balance:1.5dB Stylus type:Highly polished and shaped Stylus construction:Bonded round shank Colour:White & Black Material:Plastic Package Contents: 3 x ATN3600L Replacement Stylus 3 x Stylus Cleaning Brush Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.