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Accessories |
Voice System HL 551
Used in conjunction with the same pair of wires that carries timing impulses, this system provides voice communication over long distances.High quality headsets are connected to adaptors and offer excellent two-way communications signal quality.
Accessories |
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| HL551-10 | Additional adapter for HL551 | |
| HL551-1 | ;) | Additional headset for HL551 |
