Wireless microphone system AKG WMS40 Mini, black

The AKG WMS40 Mini Dual Vocal Set is a compact wireless microphone system designed for simple setup and reliable everyday use. The package includes two HT40 Mini handheld transmitters with dynamic cardioid capsules to reduce feedback and a SR40 Mini receiver with two balanced 1/4" jack outputs. Each transmitter runs up to 30 hours on a single AA battery and the receiver provides visual status indicators for power, RF link, and audio clipping. The included switched-mode power supply supports 110–240V and comes with EU, UK and US adapters.

Advantages

The system delivers clear, natural vocal reproduction thanks to AKG’s HDAP (High Definition Audio Performance) technology and offers true plug-and-play operation with gain control on the receiver and compact, lightweight transmitters. Long battery life minimizes downtime and operating costs, while the receiver’s balanced outputs simplify connection to mixers and amplifiers.

Suitable for

• Small live performances and gigs
• Presentations, lectures and classrooms
• Church services and community events
• Rehearsals and home recording where wireless mobility is needed

When it may not be suitable

Because the WMS40 Mini is a compact, entry-level system, it may not meet the requirements of large professional tours that need multi-channel coordination, advanced frequency management or studio-grade features. For setups requiring many simultaneous wireless channels or extreme RF environments, a higher-end system with channel diversity and professional frequency coordination should be considered.

Key specifications

• Transmitter type: Handheld dynamic with cardioid capsule
• Receiver outputs: Two balanced 1/4" (6.3 mm) jack outputs
• Battery life: Up to 30 hours per transmitter on one AA battery
• Power supply: Switched-mode adapter compatible with 110–240 V; EU/UK/US adapters included
• Status indicators: Power, RF link (RF OK), audio clip (AF clip)

How to use

Install a fresh AA battery in each handheld transmitter, connect the SR40 Mini receiver to a mixer or amplifier via the 1/4" balanced outputs, and power the receiver with the supplied SMPS adapter. Turn on the receiver and transmitters; verify the RF and audio LEDs indicate a proper link and adjust the output gain using the receiver’s volume/gain control as needed. Position the microphone capsule toward the sound source and maintain a suitable distance to avoid clipping.

What to consider before purchase

• Intended venue size and whether a single dual-channel system is sufficient
• Need for multiple wireless channels or advanced frequency coordination
• Compatibility with existing mixers and input connectors (1/4" jack outputs)
• Battery type and availability (AA batteries required)

Usage recommendations

Use cardioid technique by pointing the microphone capsule directly at the vocalist, keep the transmitter antenna unobstructed, and monitor the receiver LEDs during use to avoid audio clipping. For longer events, bring spare AA batteries and test the link before the performance.