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25LC128
EF-2193 (3)EF-219 (5)EF-21 (6)EF-2 (47)
Knowles

EF-21935-000

327 Ohm Receiver, Magnetic, Balanced Armature Speaker 200Hz ~ 6.3kHz Side Rectangular 125dB
Knowles

EF-21937-000

641 Ohm Receiver, Magnetic, Balanced Armature Speaker 200Hz ~ 6.3kHz Side Rectangular 126dB
Knowles

EF-21933-000

1.275 kOhm Magnetic Speaker 200Hz ~ 6.3kHz Side Rectangular 126.5dB
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