Legacy Series · U-94
U-94 — Motorola Multi-Pin (M3)
Classic multi-pin U-94 for legacy Motorola HT/GP/PRO and compatible Retevis/Ailunce HD1-class radios.
U-174 Headset
Radio Interface: Motorola Multi-Pin (M3 / GP/HT)
Connector: Motorola multi-pin GP/HT style
Verify your radio connector visually before ordering. Headset side is standard NATO U-174/U (TP-101). U-384/U (TP-105 / red rings) needs the TP-105 O-Ring adapter.
Headset & Microphone
Select the correct impedance variant for your headset microphone:
Dynamic (Low Impedance)
Military headsets — Ops-Core AMP, Peltor ComTac, MSA Sordin, OTTO dynamic.
Electret (High Impedance)
Civilian headsets, many earpieces, Earmor / Howard Leight style mics.
Not sure? Constant Able auto-detects impedance. Or use the PTT selector.
Mil-Spec Build
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⚡Genuine mil-spec U-94/A assembly
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🌊IP67 sealed (waterproof / dustproof)
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🔄Rotating blackened stainless clip
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🇺🇸Assembled in USA · BAA compliant
Compatible radios (EX / GP328+ Multipin)
Built for the EX / GP328+ Multipin accessory interface used on these manufacturer radio models:
- HD1
- GP338 Plus
- GP328 Plus
- EX500
Platform names: EX multipin, U-94/A.
Legacy U-94/A push-to-talk with U-174/U headset jack. Confirm electret vs dynamic headset requirements for your radio. Match by physical plug and radio model—not third-party chart codes alone.
