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Power Products ESM-20-VX4

Power Products > Microphones portable

Heavy Duty Speaker Microphone with 3.5mm Accessory Jack

Works with VERTEX STANDARD / MOTOROLA / YAESU EVX-261, EVX-531, EVX-534, EVX-539, VX-231, VX-261, VX-264, VX-351, VX-354, VX-410, VX-420, VX-454, VX-451, VX-459 radios that use 1-pin connector (See a full list of compatible models)

Customer Rating:

/ 1

Item SKU Number: 515902

Original Manufacturer: Vertex (also Yaesu)

Manufacturer Part Number: ESM20VX4, ESM 20 VX4, ESM-20-VX4

FCA point / Shipped from: USA

Manufacturer Warranty: 3 years

Download Free Materials:

Endura-Audio-Accessories-brochure.pdf (371.63 KB)

Item Details:

Endura Audio ESM-20 Microphone

Endura speaker mics are quality products that incorporate Kelvar reinforced cables, heavy duty strain reliefs, and durable rotating clips. Models are available for popular two-way radios and include key features as summarized below.

Features:

IP Rating	IP54
Earpiece Port	3.5 mm
Volume Control	N/A
Speaker Volume	93±3dB
Operating Temperature	-30°C to +70°C -22°F to +158°F
Emergency Button	N/A
Cable Diameter	4.5 mm

ENDURA@AUDIO

Additional Information:

Connector type:

3.5mm 1-pin and 2 Retaining Screws
(Pryme x22s, Ameradio Commo Y3, Endura VX4)

3.5mm 1-pin and 1 Locking Screw (Otto VD)

Compatible with MOTOROLA / VERTEX STANDARD / YAESU radios:

EVX-261
EVX-531
EVX-534
EVX-537
EVX-539
FT-250
FT-40R
FT-50R
FT-60R
VX-10
VX-110
VX-130
VX-131
VX-150
VX-160
VX-180
VX-1R
VX-210
VX-210A
VX-230
VX-231

VX-261
VX-264
VX-2E
VX-2R
VX-300
VX-320
VX-321
VX-350
VX-351
VX-354
VX-400
VX-410
VX-414
VX-417
VX-420
VX-420A
VX-424
VX-427
VX-450
VX-451
VX-454
VX-459

VD@Connector

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Manufacturer's Catalogs and Guides:

These files contain information about the available products from the manufacturer. If you need something that is not on our website, please contact us. We will help you purchase the desired product at a low price.

Power Products Batteries

Published Date: February 2026

Endura Battery Chargers

Published Date: February 2026

Endura Audio Accessories

Published Date: February 2026

Power Products has a significant customer base located throughout the U.S. and markets products under the Power Products, Endura, and Logic Energy brands.

Find two-way radio batteries, chargers and audio accessories for most major brands and models. All products are made from top grade materials and manufactured with rigorous quality control standards to ensure exceptional reliability.