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AKG WMS420 Headworn Set Wireless Microphone System - Band A

Wireless Headset Microphone System with C555L Condenser Microphone, PT420 Pocket Transmitter, and SR420 Receiver - A Band
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Item ID: WMS420H-A
AKG WMS420 Headworn Set Wireless Microphone System - Band A
Price:$530 and 00 cents
Special Financing - Ends Aug 2, 2026. $15/month with 36 month financing*

We Can Get It!

While this isn't an item we normally stock, we can still get it due to our great relationship with AKG. Go ahead and place your order and we'll follow up shortly to let you know when to expect it. Estimated July 2026.

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AKG WMS420 Headworn Set Wireless Microphone System - Band A
We Can Get It!
Price:$530 and 00 cents
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Flexible, Economical Headset Wireless System

When you use the AKG WMS420 headset wireless system, you'll enjoy effortless, economical operation, dependable performance, and great audio quality. Consisting of the SR420 stationary receiver, C555L headworn microphone, and PT420 pocket transmitter, the WMS420 gives you a highly flexible wireless solution that's ideal onstage as well as in locations where you need reliable single- or multichannel wireless. With its charging contacts, the transmitter lets you easily use rechargeable batteries, for economical operation that's particularly attractive for installations. When you need a high-quality, high-value headset wireless system, you can count on the AKG WMS420.

AKG WMS420 Wireless Headset Microphone System at a Glance:
  • C555L gives you a hands-free headset that's both comfortable and secure
  • Flexible and economical battery options
  • Optimized for superior performance and flexibility
C555L gives you a hands-free headset that's both comfortable and secure

Simplify your speaking, teaching, or singing experience the AKG C555L headworn mic! This mic is perfect for speakers and instructors who want to focus on their message. It allows you to interact with your audience without holding a bulky microphone. And if you're a drummer, you will love getting rid of the vocal mic stand that's always in the way!

Flexible, economical battery options

The WMS420 wireless system consists of the SR420 stationary receiver, C555L headworn microphone, and the PT420 bodypack transmitter. The PT420 transmitter is equipped with charging contacts that let you conveniently charge your rechargeable batteries without removing them. The rechargeable option also gives you the potential of considerable cost savings over time - a big plus for installations. And speaking of batteries, the PT420 gives you an outstanding eight hours of operation from a single AA, which reduces your operating costs in day-to-day use.

Optimized for superior performance and flexibility

The WMS420 wireless system includes AKG's R420 stationary receiver, which features detachable antennas. Sweetwater's FOH engineers appreciate thoughtful professional features and we like this one because it allows the use of pro-level accessories such as antenna splitters and remote-mounted directional antennas for multichannel systems. Further, the system uses diversity antennas (with the receiver antenna being frequency-range-optimized) for superior performance in congested multipath situations. Whether you need a simple, single-channel setup or a complex multichannel system, the WMS420 makes a great starting point. With up to eight channels per band, the WMS420 lets you start out simply, and add to your system as your needs dictate.

AKG WMS420 Wireless Headset Microphone System Features at a Glance:
  • The system includes:
  • 1 PT420 bodypack transmitter
  • 1 SR420 stationary receiver
  • 1 C555L headworn microphone
  • 1 Windscreen W444
  • 2 Receiver antennas
  • 1 AC adapter
  • 1 AA size battery
  • System features include:
  • Audio bandwidth: 40Hz-20kHz
  • Up to eight channels coexist in one band
  • Eight hours of operation on a single AA battery
  • Uses primary or rechargeable battery
  • Transmitter with charging contacts saves money in daily use
  • Low-battery warning indicator for confident operation
  • Diversity antenna gives you superior performance in congested multipath situations
  • Frequency-range-optimized receiver antennas
  • Detachable receiver antennas enable the use of professional RF accessories
  • Compatible with all AKG MicroMics
Reliable wireless freedom is yours with the AKG WMS420 Headset Wireless System!
Worry-free Wireless!

We wanted you to know that all of the wireless systems you see here – and all of the wireless systems available at Sweetwater – are 100% compliant with the Federal Communication Commission's new rules governing wireless systems. You can be confident that these systems will work within the FCC's currently permitted frequency/power ranges. Please be aware that systems operating in the 617-652 MHz or 663-698 MHz range are now operating outside the FCC's new guidelines. To find out more, visit the FCC's wireless microphone website at  www.fcc.gov/cgb/wirelessmicrophones  or give them a call at (888) CALL-FCC.

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Tech Specs

  • Application: Presenter, Vocals
  • System: Simultaneous Channels: 8
  • System: Analog/Digital: Analog
  • System: Frequency Range: 530.025-559MHz
  • System: Operating Range: 98 ft. Line-of-sight
  • System: Frequency Response: 40Hz-20kHz
  • System: Microphone Included: Yes
  • Microphone: Form Factor: Headworn
  • Microphone: Color: Black
  • Microphone: Type: Condenser
  • Microphone: Polar Pattern: Cardioid
  • Microphone: Max SPL: 126dB SPL
  • Microphone: Connector: TA3F
  • Microphone: Frequency Response: 20Hz-20kHz
  • Microphone: Cable Length: 5 ft.
  • Transmitter: Form Factor: Bodypack
  • Transmitter: Battery Type: 1 x AA
  • Transmitter: Battery Life: 8 hours
  • Transmitter: Dimensions: 2.36" x 2.97" x 1.18"
  • Receiver: Antenna Type: Detachable
  • Receiver: Signal/Noise Ratio: 105dB (A-weighted)
  • Receiver: Type: Table Top
  • Receiver: Rackmountable: Yes (kit sold separately)
  • Receiver: Rack Spaces: 1U (half-rack)
  • Receiver: Front Panel Display: Yes
  • Receiver: Outputs: 1 x XLR, 1 x 1/4"
  • Receiver: Dimensions: 5.9" x 1.73" x 7.87"
  • Manufacturer Part Number: 3413H00010

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Reviews

Rock Solid
I purchased this system in the fall of 2015 and have been using it ever since while performing with a band as well as at my nursing home gigs. It's performed flawlessly. The only issue I had was the plastic protectors on the ear loops eventually wore out and I replaced them with heat shrink tubing. One reviewer complained that the mic boom doesn't extend long enough to go directly in front of your mouth. It's not supposed to. It's designed to pick up off to the side and works just fine in that position. The lead singer in our band bought one after hearing mine and extended the mic to directly in front of his mouth. Big time distortion from overdriving the mic element, so don't do it. Also, I switched to Lithium batteries and got a lot more performance time.
Music background: lead guitarist & singer
AKG WMS420
Other than the mic's sensitivity (picks up head movements) it's a really great product. Being a keyboardist , I can play and sing in tandem while looking at my board. Why have I not had this before?
Sounds great with my TC Live as well. I'll buy another in a heartbeat! Let's not forget my Sales Engineer Austin who shipped my order timely as always. Thanks Sweetwater!!
Music background: WeekEnd Warrior
AKG wireless headset
It has really great range and the headset is sturdy, comfortable, and easy to wear. It has really good pickup for vocals. I use this mic for myself and have Shure wireless handheld SM and Beta 58's for my singers at my KARAOKE shows, and I think my headset is just as good! Not to mention I'm the only one using my headset!
Music background: KJ / DJ / Vocalist
Head set
The boom is not long enough to go in front of your mouth. Two short. For a lead singer. Great sound.