Fangrui Product Details Features: 1.the Moving Magnetic Pickup Is High Output, And The Booster Is Not Required; 2.the Magnetic Head Is More Accurate And The Sound Is More Pure. Playing Rock, Popular, Jazz And Other Types Of Music Can Make The Sound More Delicate. 3.the Life Of The Magnetic Head Is Generally 4 Times That Of Ordinary Piezoelectric Cartridges, Better Durability. 4.the Magnetic Head Can Better Control The Tone Color, Make The Medium Frequency Warm And Wide, The Low Frequency Is Full And Flexible, And The High Frequency Is Bright And Dry. 5.paratoroidal Coils Improve Generating Efficiency; 6.styluss Multilevel Shape Also Wears Other Styli, While Reducing The Wear On Your Records 7.wonderful Accessory For Phonograph, Vinyl Record Player. Specifications: Model: Needle Species; Magnetic Head, Phonograph Head (pickup) Drive Mode; Electromagnetic Track Number; Dual Channel (stereo) Polarity: When The Tip Is Driven Laterally (left And Right), The Phase Of The Left Channel (l) And Right Channel (r) Output Voltages Should