AKG WMS40 MINI Vocal Wireless set US25A: 537.500MHz

AKG WMS40 Mini Vocal US25A — Plug-and-Play Wireless Vocal System

The AKG WMS40 Mini Vocal US25A wireless microphone system delivers dependable UHF vocal performance for small stages, clubs, places of worship, hotels, and gyms. This plug-and-play system is up and running in a second with no frequency coordination required. The set pairs an SR40 Mini receiver with an HT40 Mini handheld transmitter, both engineered for clear vocal reproduction. Built around AKG's HDAP (High Definition Audio Performance) technology, the system captures the natural character of the human voice.

What Sets This Wireless System Apart

What makes the WMS40 Mini Vocal US25A stand out is HDAP audio processing paired with an exceptionally long 30-hour battery life from a single AA cell. Inside the HT40 Mini transmitter, a cardioid dynamic capsule protected by a sturdy wire-mesh grille rejects off-axis noise and survives regular stage use. The SR40 Mini receiver adds three front-panel status LEDs (ON/OFF, RF OK, AF CLIP) for at-a-glance signal monitoring.

Technical Specifications — Transmission, Transmitter, and Receiver

Operating on a single fixed UHF frequency, this system removes the complexity of frequency scanning. The handheld transmitter is built for long performances, while the compact receiver connects to any mixer or PA system via a standard 1/4" jack.

• System: UHF — stable transmission with predictable behavior in typical indoor and small-stage environments
• Frequency Band: 660.7 MHz — fixed-frequency operation, no scanning or coordination required
• Frequency Range: 40 Hz – 20 kHz — full-range audio response that captures vocal fundamentals and high-frequency detail
• Battery Life: Up to 30 hours from a single AA battery — reduces replacement costs over years of regular use
• Receiver Output: 1/4" (6.35 mm) jack with 3 status LEDs — at-a-glance monitoring of power, RF signal, and audio clipping

Who Should Choose the WMS40 Mini Vocal US25A

The AKG WMS40 Mini Vocal US25A is the right choice for solo performers and small-venue operators who need a no-fuss wireless vocal system that works the moment it's switched on. Lead vocalists, fitness instructors, worship leaders, and MCs benefit from the straightforward setup and 30-hour battery endurance. Houses of worship and hotel event spaces appreciate the fixed-frequency design — no menu diving required. The included stand adapter and universal power supply make this set easy to deploy across multiple venues.