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Reviews
Q&A
Gem Sound

Description

Brought to you by Gem Sound, the GMW-4 Quad-Channel Wireless Mic System EF offers high-fidelity audio transmission and reception over long ranges. This four-channel VHF wireless microphone system features a super heterodyne receiver and transmitters with 100' operating range—ideal for karaoke performances, presentations, and events.

Crystal-Clear Audio Over Long Distances

With a super heterodyne receiver and VHF high-band operation, the GMW-4 provides interference-free transmission and studio-quality sound over its 100' range. Four included handheld dynamic microphones offer warm and articulate vocal reproduction for singing or speaking. Users can operate all four microphones simultaneously without crosstalk or signal degradation.

Reliable, Long-Lasting Power

Each GMW-4 microphone operates for up to eight hours on two AA batteries, providing dependable power for even the longest presentations or karaoke sessions. The receiver connects to any standard AC power outlet for continuous use. With a rugged metal housing, the GMW-4 system is built to withstand the rigors of frequent transport and handling.

Simple Setup and Operation

The GMW-4 Quad-Channel Wireless Mic System EF requires minimal setup. Users simply connect the included receiver to a mixer or amplifier, turn on the power, and match the microphone transmitters to the correct receiver channels. Independent volume control for each channel allows for quick and precise level adjustments. An LED indicator on each microphone shows battery status and transmission signal strength for confidence during use.

Frequency Agility and Licensing Info

The GMW-4 system provides two selectable frequency sets—ABCD and EFGH—to avoid interference from other devices. While most casual users do not require an operating license, the GMW-4 must be operated at low power according to FCC regulations. For details, visit the FCC's wireless microphone website or call 1-888-CALL-FCC.

Gem Sound GMW-4 Quad-Channel Wireless Mic System EF
Gem Sound GMW-4 Quad-Channel Wireless Mic System EF

Features

  • 4-channel system allows the four included mics to operate simultaneously
  • Up to 100' range, 50' under normal conditions
  • Microphones operates for up to 8 hours on 2 x AA alkaline batteries
  • Super heterodyne receiver is ideal for karaoke and presentation use

Specs

Frequencies (MHz)
  • System EFGH: 191.6, 211, 196.1, 214.5
  • System ABCD: 212.1, 194.6, 193.1, 215.5

Warranty

One year warranty on all electronics. 3 year warranty on speakers.

Featured Articles

Reviews

2.94

17 Reviews

53%

of respondents would recommend this to a friend

Most Liked Positive Review

5

Would purchase again

Works for what it was needed for. Using for karaoke and sound is great and distance is well.

VS

Most Liked Negative Review

1

4 mics is nice, but you only get 1 star

I bought this unit this past week and I had 2 separate gigs. I needed 4 mics for 2 different silent auction events. The mics kept shutting down and there were dead spots in their words while speaking. The Auctioneers were getting frustrated, the crowd was getting upset cause they couldn't hear. I have bought many mic systems and never have had issues like this. I will be returning this 4-mic system and buying something else. 1 positive...all mics were color coded and the Rf unit had color lights so that each mic could be lowered or raised individually based on the color.

Filters
Best Uses
  1. Outdoor Events / Games8
  2. Performances6
  3. Pro Audio / DJ / Mixing5
  4. Home Studio1
  5. Trash1
Cons
  1. Not Durable7
  2. Poor Sound Quality7
  3. Unreliable6
  4. Limited Functions3
  5. Pricey / Poor Value1
Describe Yourself
  1. Experienced12
  2. Novice1
  3. Professional Musician1
Pros
  1. Lightweight11
  2. Easy To Use10
  3. Good Audio9
  4. Compact6
  5. Durable5

Reviewed by 17 customers

  • I wouldn't purchase this microphone system again

    1

    submitteda year ago

    byLarry

    fromGeorgetown,SV

    This microphone system isn't durable at all…dropping microphones causes damage easily and it becomes imperative.

  • Yes I would

    5

    Verified Buyer

    submitteda year ago

    byFreeman

    fromMilwaukee WI

    Submitted as part of a sweepstakes

    Great equipment and quality

  • Bad system, cheap materials

    1

    submitted2 years ago

    byRoger

    fromHouston Texas

    Since day one I've had issues with it. Out of the box wouldn't turn on, I'm electronics tech so I decided to open it and found an unsoldered cable . After fixing it found one microphone cutting out and the volume on all others extremely low. The led light on microphone will turn on only when battery is low.

  • DO NOT BUY THIS PRODUCT

    1

    submitted2 years ago

    byChristian

    fromAurora, IL

    GC guy actually warned me about this product and said it was bad. I believed him, but I thought he was exaggerating. From the moment I plugged them in they were faulty. Cutting out during the middle of toasts at a wedding, and during my speeches. Terrible product.

  • Yes

    5

    Verified Buyer

    submitted2 years ago

    byAngel

    fromNewark, New Jersey

    Submitted as part of a sweepstakes

    No issues. I have used this brand for wedding DJ and more including karaoke.

  • 4 mics is nice, but you only get 1 star

    1

    submitted3 years ago

    byDJ WRETRO

    fromRancho Cucamonga, CA

    I bought this unit this past week and I had 2 separate gigs. I needed 4 mics for 2 different silent auction events. The mics kept shutting down and there were dead spots in their words while speaking. The Auctioneers were getting frustrated, the crowd was getting upset cause they couldn't hear. I have bought many mic systems and never have had issues like this. I will be returning this 4-mic system and buying something else. 1 positive...all mics were color coded and the Rf unit had color lights so that each mic could be lowered or raised individually based on the color.

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Q&A

Have a question about this product? Our expert Gear Advisers have the answers.

  • submitted2 years ago

    asked byAlix

    fromPittsburg, Ca

    What kind of wire besides the power wire do you need for this device?

    Open Reply - Gear-Adviser
    Please see--Livewire Elite Quad Microphone Cable 25 ft.

  • submitted3 years ago

    asked byDJSupadan2000

    fromWashington DC

    Whats the difference between 'AB' and 'EF'

    Open Reply - Gear-Adviser
    They're different frequencies.

  • submitted3 years ago

    asked byRich

    fromHorsham, PA

    Are there any cables included in the packaging? If so, what are they?

    Open Reply - Ronald
    The only cables that come with is the power cable.

  • submitted3 years ago

    asked byKita

    fromMississippi

    Do you need a speaker with this product?

    Open Reply - Thomas
    We need a little more information to better help you. Please give us a call at 855-770-3373

  • submitted4 years ago

    asked byDarian

    fromNashville

    Can I reduce the echo/delay?

    Open Reply - Kenneth
    No, you cannot adjust the echo/delay

  • submitted5 years ago

    asked bybarry

    frommorganton nc

    what would cause the signal to be lost to all channels at the same time ? all mics have new fully charged batterys

    Open Reply - Kenneth
    Please contact a Customer Service Agent for trouble shooting inquiries

  • submitted7 years ago

    asked bydoug

    fromlehigh acres fl.

    are there any ear mics that can be used with this system

    Open Reply - Beau
    No, unfortunately not. This system comes with the 4 mics it can be used with. 4-channel system allows the four included mics to operate simultaneously.

  • submitted7 years ago

    asked byBigRed

    fromMobile,Al

    Does this come with a rack mount bracket?

    Open Reply - Beau
    This mic system does not come with a rack mount bracket.