Compatible for NX-700 NX-720HG NX-800 NX-820HG NX-900 NX-901 NX-920G NXR-710. NXR-810 TK-630 TK-730 TK-830 TK-760,TK-768, TK-768G, TK-780, TK-860, TK-868, TK-880, TK-868G, TK-808 TK-980 TKR-750 TKR-850 TK-850, TK-830 TK-750 TK-7108HM, TK-7108M,TK-7160E, TK-7160HM, TK-7160M, TK-7162E, TK-7180E, TK-7189E, TK-8108HM, TK-8108M, TK-8160E,TKR-851E, TKR-851E3, TM-271E TK-8160E3, TK-8160HM, TK-8160M, TK-8162E, TK-8162E3, TK-8180E, TK-8189E, TK-90,TKR-750E (Version 2), TKR-751E, TKR-850E (Version 2)Microphone