AKG WMS40 Mini Vocal ISM1

AKG WMS40 Mini Vocal ISM1 — Plug-and-Play Wireless Vocal System

The AKG WMS40 Mini Vocal ISM1 is a ready-to-go handheld wireless microphone package for singers, MCs, presenters, and worship leaders who need reliable vocal reproduction without complicated setup. Operating on a fixed UHF frequency at 863.1 MHz, this ISM1 variant is license-free across most of Europe, so users can power it on and perform without registering frequencies. The system pairs an HT40 Mini handheld transmitter with an SR40 Mini receiver — "up and running" in a second.

What Sets This Wireless System Apart

Where most wireless systems in this tier demand menu dives and frequency scans, the WMS40 Mini keeps things deliberately simple: a single fixed frequency, a slide switch on the transmitter, and a receiver that powers up the moment it is plugged in. The switched-mode power supply ships with EU, UK, US, and AU adapters, so the system travels internationally without a separate voltage converter. Inside the HT40 Mini handheld transmitter, a single AA battery delivers up to 30 hours of operation.

Technical Parameters — Wireless Performance and Power

The technical profile is built around stable transmission, broad audio response, and low operating cost. A fixed-frequency design eliminates pairing errors, while the wide frequency response captures vocal nuance from chest resonance to airy highs.

• System Type: UHF wireless — stable signal transmission with minimal interference in the license-free ISM band
• Operating Frequency: 863.1 MHz — license-free across most of Europe, ready to use out of the box
• Frequency Response: 40 Hz – 20 kHz — full-range audio capture for natural vocal reproduction
• Transmitter Battery Life: up to 30 hours on a single AA battery — multi-gig endurance without recharging
• Receiver Form Factor — compact desktop unit, not rack-mountable, sized for portable setups

Who the WMS40 Mini Vocal ISM1 Is Built For

The WMS40 Mini Vocal ISM1 is the right choice for solo performers, DJs, MCs, fitness instructors, and worship leaders who need a dependable wireless vocal system without frequency coordination. Mobile entertainers will appreciate the universal power supply and 30-hour AA battery, removing the need for spare rechargeable packs on tour. Small-venue operators benefit from the compact receiver and the transmitter's slide switch for muting between songs.