| Icom SP-4 (IC-SP4) 
 
   SPECIFICATIONS
| Type: | Mobile speaker |  
| Max input power: | ? W |  
| Impedance: | ? ohm |  
| Frequency response: | ?-? Hz |  
| Filter cut-off: | No filter |  
| Filter response: | - |  
| Dimensions (W*H*D): | ? mm (?") |  
| Weight: | ? Kg (? lb) |  
| Manufactured: | Japan, 198x-198x (Discontinued) |  
| Other: |  |  
| Related documents: |  |  
| Modifications and fixes: |  |  
| Reviews: |  |  
| Applicable radios: | Many |  |