This needle is compatible with the following models: Technics SL-B210, SL-B30, SL-B300, SL-BD2, SL-BD20D, SL-BD20, SL-BD21, SL-BD22D. Plugs into the tonearm. Output: 5MV +- 3DB Channel Balance below 1DB Channel Separation: 15DB+ Frequency response: 20K HZ Tracking force: 1.25 Grams