does it have selectable channel

No it comes with a default channel already and you can't change the channel.

What the frequency that the microfone Works at. i Will use in Brazil

The mic frequency will automatically adjust itself. No need to look for the right frequency.

I need to buy 5. Can they all be different frequencies?

I believe so. I have 2 operating without problem at the same location. I do not recall a frequency adjustment so it must be automatic. There may be an upper count limit. Ask the manufacturer.

Can three single wms40 mini vocal set be operate at the same time without conflicts frequency or channel?

As long as they are all different ABCD bands of this model. I have three for my wedding DJ setup and I run ABC bands with absolutely no interference. Have been doing this for about 3 years now. No dropouts up to about 100 feet line of sight and no failures yet. I even have to AKG's from 20 years ago I use as well if needed for lavalier applications that still work perfectly. Big AKG fan here.

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AKG Pro Audio WMS40MINI Vocal Set BD US25C Wireless Microphone System

AKG Pro Audio WMS40MINI Vocal Set BD US25C Wireless Microphone System

Product ID: 561780762

Details

Brand
AKG
Connectivity Technology
Wireless
Connector Type
6.35 mm Jack
Model Name
WMS40MINI Set
Recommended Uses For Product
Karaoke

🎤Dynamic cardioid capsule for crisp vocals

📡True plug 'n' play wireless connectivity

🔋30-hour battery life on a single AA

HK$3232

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Description

🎙️ Elevate your voice, own the stage—wireless freedom that never quits!

COMPACT PORTABLE - Sleek, ultra-compact receiver design fits effortlessly into any setup or gig bag.
CRYSTAL CLEAR SOUND - Experience pristine audio with AKG’s dynamic cardioid capsule that maximizes gain before feedback.
ULTRA LONG BATTERY LIFE - Keep the party going with an impressive 30 hours of wireless freedom on just one AA battery.
PLUG N PLAY SIMPLICITY - No tech headaches—just seamless wireless connection with a universal power supply and multi-region adapters.
PROFESSIONAL GRADE COMPATIBILITY - Works flawlessly with amplifiers and karaoke machines via a standard 1/4" jack output.

The AKG Pro Audio WMS40MINI Vocal Set BD US25C is a professional wireless microphone system designed for flawless vocal performance. Featuring a dynamic cardioid handheld transmitter and an ultra-compact receiver, it delivers crystal-clear sound with minimal feedback. Its standout 30-hour battery life on a single AA battery ensures extended use without interruption. Compatible with amplifiers and karaoke machines, this plug 'n' play system includes a universal power supply with adapters for global use, making it the perfect choice for professionals and enthusiasts seeking reliable, high-quality wireless audio.

Specifications

ASIN	B01IHISZ80
Antenna Location	Karaoke
Audible Noise	85 Decibels
Box Contents	Receiver, Transmitter
Brand	AKG
Brand Name	AKG
Colour	Black
Compatible Devices	Amplifier
Connectivity Technology	Wireless
Connector Type	6.35 mm Jack
Customer Reviews	3.9 out of 5 stars 161 Reviews
Enclosure Material	Crystal
Frequency Range	20 hz 20 khz
Frequency Response	20 KHz
Global Trade Identification Number	00885038038993
Hardware Platform	Karaoke Machine
Impedance Unit of Measure	600 Ohms
Item Dimensions	28.7 x 23.8 x 5.9 Centimeters
Item Type Name	Wireless Microphone System
Manufacturer	AKG
Manufacturer Part Number	3347X00130
Microphone Form Factor	Handheld
Model Name	WMS40MINI Vocal Set BD US25C
Model Number	3347X00130
Number of Batteries	1 AA batteries required. (included)
Number of Channels	1
Polar Pattern	Unidirectional
Power Source	Battery Powered
Recommended Uses For Product	Karaoke
Signal-to-Noise Ratio	85 dB
Special Feature	Wireless
UPC	885038038993 750408396488
Unit Count	1.0 Count

Reviews

B**A

Schalter defekt

Nach 2 Jahren funktioniert der On-Off Schiebeschalter nicht mehr.

20.03.2026

A**S

El mejor calidad/precio!

No lo dudes, funciona exelente! Muy buen alcance. Funciona con una sola pila.

24.01.2026

D**K

Calidad, precio, be

Mi tercer micrófono AKG, sugiero compren en serie A-B-C para no tener interferencias. Tienen una gran calidad de audio al mejor costo y ahorro de batería, el alcance es suficiente para eventos en áreas cerradas. Lo recomiendo mil veces a marcas desconocidas del mismo costo.

27.07.2025

J**.

Recomendado!!!

Excelente, buen rendimiento, no genera feedback, usa una sola batería que tiene muy buena duración y el alcance es excelente

27.08.2025

C**N

No sirve.

No sirven estas marcas. Se prende el led rojo y genera un ruido espantoso.

20.09.2024

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HK$3232

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Great experience from order to delivery. Highly recommended!

1 week ago

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2 weeks ago

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