SONY MDR-E140C
¥ 2,200 (around 1987)
Commentary
A monaural ear receiver that makes use of sound characteristics and bone conduction sound to match human voices.
You can also use it for recording calls by setting the ear receiver to the ear to which the receiver is attached.
Model Rating
| Type | Open air dynamic type |
| Units Used | Φ 16 mm Dome Type (Adopts CCAW) |
| Impedance | 150 Ω |
| Sensitivity | 104dB/mW |
| Max Input | 50mW |
| Playback frequency | 20 to 20,000 Hz |
| Weight | 2.8g (cord not included) |
| Cord Length | 1.5m OFC Litz wire |
| Plug | L type mini plug |