







💼 Stay connected, rain or shine — the pro’s choice for rugged clarity!
The Standard Horizon MH-73A4B is a submersible, wired speaker microphone designed for professional handheld radios (excluding HX270/280/370SAS models). Delivering 78 dB audible noise and a 16 KHz frequency response, it ensures crystal-clear, high-fidelity audio. Its rugged, water-resistant build and ergonomic design make it ideal for demanding environments, providing reliable, hands-free communication for vehicle and marine applications.








| ASIN | B007Z9SGLY |
| Audible Noise | 78 Decibels |
| Audio Sensitivity | 76 Decibels |
| Box Contents | SPEAKERS |
| Brand | Standard Horizon |
| Brand Name | Standard Horizon |
| Colour | Beige |
| Compatible Devices | Speaker |
| Connectivity Technology | Wired |
| Connector Type | 3.5 mm TRS |
| Enclosure Material | Other |
| Frequency Response | 16 KHz |
| Hardware Platform | speaker |
| Impedance Unit of Measure | 1000 Ohms |
| Item Dimensions | 10.2 x 6.4 x 2.5 Centimeters |
| Item Weight Unit of Measure | 70 Grams |
| Manufacturer | STANDARD PARTS |
| Manufacturer Part Number | MH-73A4B |
| Microphone Form Factor | Handheld |
| Model Name | MH-73A4B |
| Model Number | MH-73A4B |
| Number of Channels | 1 |
| Polar Pattern | Unidirectional |
| Signal-to-Noise Ratio | 78 dB |
| Special Feature | built-in microphone |
| UPC | 788026130566 |
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