... : TK-T12(1-1)A, TK-T12(1-1)B1, TK-EP220-12, TK-T12(1-1)2A, TK-T12(1-1)49N, TK-T12(1-1)B2.Input voltage ... voltage:DC12V/24V/6V4.AH:1.3A/h5.Frequency response:300HZ-400HZ6.Maximum transmission distance:3000M1.Thyssen parts,Five party talkback for ... kinds of other brand elevator parts,such as YUNGTAY parts,Thyssen parts,Schindler parts,Kone parts,Mitsubishi parts,Toshiba parts,Hitachi ...