DEP500 / DEP500e Series DEP550, DEP570, DEP550e, DEP570e. DP2000, DP2400, DP2600, DP3441, DP2000e, DP2400e, DP2600e, DP3441e, DP3661e. Maxtop ASK4032-AX 2-Wire Acoustic Air Tube Surveillance Kit for Motorola MOTOTRBO + Black Earmold.
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