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AKG WMS40 Mini US45B

Wireless microphone system

6 Reviews

Item # 854WS40VSB

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Our take on the AKG WMS40 Mini US45B

AKG has supplied creative solutions for sound reinforcement and recording since 1947. Their microphones are among the most respected and widely-used in the industry. Now AKG has introduced the WMS40 Mini, a small, lightweight, and inexpensive wireless microphone system.

A new contender

AKG has supplied creative solutions for sound reinforcement and recording since 1947. Their microphones are among the most respected and widely-used in the industry. Now AKG has introduced the WMS40 Mini, a small, lightweight, and inexpensive wireless microphone system.

Receiver and sender

The WMS40 Mini system, which includes the HT40 Mini wireless microphone and the SR40 Mini receiver, offers simple "plug and play" setup. The HT40 Mini cardoid dynamic microphone is protected by a wire mesh grille and features a handy, noiseless ON/OFF/MUTE switch. Its integrated transmitter offers up to 30 hours of life from a single AA battery.

The SR40 Mini receiver includes a volume knob, a balanced 1/4" output jack, and LED indicators for on/off status, signal strength, and clipping. A noiseless on/off switch protects speakers and other components from switching noise. You can operate the receiver on any AC voltage from 110 to 240 volts, and the package includes adapters for US, EU, and UK power systems. The receiver's metal housing will stand up to extended wear and tear, and you can rackmount the receiver with AKG's RMU40 Pro adapter kit (not included).

AKG's WMS40 Mini is a strong contender in bang-for-the-buck, and offers proven AKG performance. Why not see if wireless is right for you?


  • wireless microphone system with microphone/transmitter and receiver
  • 30 hours transmitter operation on one AA battery
  • noiseless on/off switching
  • receiver rackmountable with adapter kit (sold separately)
Electronic features:
  • frequency band: 661.1 MHz fixed
  • frequency response: 40-20,000 Hz
  • operating range: 65' (line of sight)
General features

What's in the Box:

  • HT40 Handheld microphone and transmitter
  • SR40 Wireless receiver
  • Power supply
  • One AA battery
  • Stand adapter
  • Owner's Manual

Fantabulous. Great product.

Debo Aina, Great Neck, NY


AKG WMS40 Mini US45B Reviews

Average Customer Review(s):

(6 Reviews)

Bar owner/KJ-DJ

Crutchfield customer from Orient, OH on 1/31/2019

Crutchfield Customer Review (What's this?)

This makes 4 of these mics I have owned. the only problem I have had is the on/off switches get worn, but after many many uses. I have an "A", "B", & a "C". The A's & B's are great, but the C bleeds over into the A so I don't use it for my karaoke shows. Very reliable. I've owned the first ones for over 2 years. They have been used 3 nights a week, 5 hours each night, and have been dropped, pitched on the table, and held up fantastic. also don't forget. I've only changed the 1 "AA" battery in each mic, about every 6 weeks.

Pros: well built for the money. Very reliable.

Cons: "C" mic bleeds over to the "A", and the slide switches get hard to turn on and off.

AKG WMS40 Mini US45B

Guest from Culpeper, VA on 12/5/2018

Great sound and quality



AKG WMS40 Mini US45B

Debo Aina from Great Neck, NY on 6/24/2018

Crutchfield Customer Review (What's this?)

Fantabulous. Great product.

Pros: Great.


Mini US45B wireless

PFEM Church from Troy, NY 12180 on 6/8/2016

Crutchfield Customer Review (What's this?)

I was in need of a new mike even through I was not happy with the system. I purchased the unit hoping it would equal the old one. I was then surprised the unit worked better with far greater range and a remarkable increase in clarity. I am very pleased with this unit. If someone wants to donate a second one we will thank them! Then praise the Lord.

Pros: Range and clarity

Cons: only one mic.

AKG WMS40 Mini US45B

Crutchfield customer from Georgia on 12/13/2015

Crutchfield Customer Review (What's this?)

Excellent product!



Remote Mic

JIm from Florida on 4/12/2015

Crutchfield Customer Review (What's this?)

Great product recommended by a great support team...thank you




Hands-on research

Product Research


Single Wireless Mic System: The AKG WMS40 Mini Single Vocal Set is a true plug-&-play wireless mic solution providing crystal clear audio sound. The included HT40 Mini handheld transmitter features a dynamic cardioid capsule for maximum gain before feedback. It's extremely long battery life of 30 hours off a single AA battery saves money in day-to-day use. The receiver comes in an ultra compact housing and offers a 1/4" jack output to your mixer. The wireless mic system features a fixed frequency band (661.1 MHz), a range of approximately 65', and a 40-20kHz frequency response.

Wireless Stationary Receiver (SR40): The SR40 Mini wireless stationary receiver provides crystal clear audio quality for powerful performances. It features three status LEDs indicating on/off status, received signal strength (RF OK) and audio clipping (AF CLIP) The receiver provides a volume control potentiometer and a noiseless on/off switch to protect the connected speakers. The SR40 Mini features one balanced outputs via 1/4" jack connector to plug into your mixer. The supplied switched mode power supply operates on any AC voltage from 110 to 240VAC and includes EU, UK, and US adapters.

Wireless Handheld Transmitter/Mic (HT40 Mini): The HT40 Mini is a wireless handheld transmitter with a dynamic microphone capsule designed for stressless work in houses of worship, in clubs and on small stages. Its cardioid polar pattern ensures maximum gain before feedback and the unique HDAP (High Definition Audio Performance) technology delivers brilliant sound. The rugged transmitter features an on/off/mute switch and a sturdy wire-mesh cap to protect the microphone element. The HT40 Mini system's stand-out feature is its extremely long battery life of 30 hours off a single AA battery. It represents ultimate ease of use at an unbeatable price-performance ratio.

Applications: The AKG WMS40 Mini Single Vocal Set is perfect for houses of worship, hotels, gyms, and band applications.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

Recommended by a friend [ Yvette  Apr 27, 2018 ]
O haver already have one and it os very good. [ Wanessa Zanelat  Jul 18, 2017 ]
Zac recommended it according to the information that i provide and the budget we have [ Luis  Oct 19, 2016 ]
A very good and reliable brand. [ Victorio P.  May 15, 2016 ]
Needed one at church. [ Mark  Apr 10, 2016 ]
It looked like just the device we were looking for at a very reasonable price. [ Sr. Mary Jean  Dec 07, 2015 ]