Mizuho MS-1

| Type: | Speaker-microphone |
| Frequency range: | ?-? Hz |
| Gain: | ? dB |
| Impedance: | Microphone: 600 ohms Speaker: 8 ohms, max 350 mW |
| Voltage: | - |
| Current drain: | - |
| Dimensions (W*H*D): | 40 mm diameter |
| Weight: | ? gr |
| Manufactured: | Japan, 19xx-19xx (Discontinued) |
| Other: | |
| Related documents: | |
| Modifications: | |
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