| Type: | Electret hand microphone with auto patch encoder | 
| Frequency response: | 300-3000 Hz (-6 dB) | 
| Sensitivity: | ? dB (? Hz, ? cm) | 
| Output level: | Max 30 mV RMS | 
| Output impedance / connector: | Hi-Z / Open end | 
| Power supply: | 9 VDC (6LR61 / PP3 battery) | 
| Current drain: | 12 mA | 
| Dimensions (W*H*D): | 67*95*44 mm (2.62*3.75*1.75") | 
| Weight: | 255 g (9 oz), with battery | 
| Manufactured: | USA, 1977-1982 (Discontinued) | 
| Other: | DTMF keypad 
 New price, christmas 1977 in the US: $34.95
 New price, spring 1978 in the US: $39.95
 New price, fall 1979 in the US: $44.95
 New price, fall 1980 in the US: $44.95
 New price, winter 1981 in the US: $44.95
 New price, christmas 1982 in the US: $49.95
 New price, fall 1983 in the US: $49.95
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| Related documents: | Schematic diagram (400 KB) | 
| Modifications and fixes: |  | 
| Reviews: |  | 
| Applicable radios: | Many |