This needle is compatible with the following models: Technics SL-J2, SL-J3, SL-J300R, SL-J33, SL-BD22, SL-QD33. Plugs into your tonearm. Output: 5MV +- 3DB Channel Balance below 1DB Channel Separation: 15DB+ Frequency response: 20K HZ Tracking force: 1.25 Grams