The Icom HM-205RB is the speaker microphone supplied with the Icom IC-M510 EVO, available here as a spare or replacement. It has a 45 mm high sound pressure speaker and an 8-pin waterproof connector, and it is IPX8 rated.
Icom lists three cables for use with it: the Icom OPC-1000 6.1 m connection cable for the rear microphone connection, the Icom OPC-1541 extension cable and the Icom OPC-2522L L-type adapter cable.
Specifications
- Speaker: 45 mm, high sound pressure
- Connector: 8-pin, waterproof
- Waterproofing: IPX8 (Icom notes the rating is equivalent to that of the radio it is connected to)
- Curled cable length: 430 mm
- Weight: 253 g
- Compatible radios: IC-M510 EVO, IC-M430, IC-M605 Euro, and the earlier IC-M510
- Brand: Icom
Included

- 1 x Icom HM-205RB speaker microphone
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