Alpha HK1 STR Handset Speaker, 50MM, 45 Ohms

The HK1 from Alpha is a handset speaker 50MM 45 Ohms. 2.00″ (50mm) Round, paper Cone, 45 ohms, pigtail wire lead connections used primarily in the receiver (earpiece) of HT2000 and/or HT3000 series handsets.