AKG WMS40M2VOCSTBDISM2-3 - UHF Vocal Band ISM2/3 Wireless System with 2 Microphones and Receiver

AKG WMS40M2VOCSTBDISM2-3 - ISM2/ISM3 Vocal UHF Wireless System with 2 Dynamic Microphones and SR40 Mini2 Dual Receiver

The AKG WMS40M2VOCSTBDISM2-3 (also known as the WMS40 Mini2 Dual Vocal Set ISM2/ISM3 ) is a plug & play UHF wireless vocal system featuring two HT40 Mini handheld microphones with cardioid dynamic capsules and an SR40 Mini2 dual receiver . It operates on the fixed ISM2: 864.375 MHz and ISM3: 864.850 MHz frequencies, within the European license-unlicensed 863–865 MHz band, simplifying use in events, venues, and rental locations. HDAP (High Definition Audio Performance) technology delivers clear sound across a 40 Hz–20 kHz audio bandwidth , while each transmitter provides up to 30 hours of runtime on a single AA battery , reducing operating costs and mid-event changeovers.

The SR40 Mini2 Dual receiver features two independent balanced 6.3mm TRS outputs (one per channel) with level control , and LED indicators per channel for easy monitoring of power, RF reception, and audio level (clip). The unit uses FM modulation with a typical transmit power of 10mW . Thanks to its non-diversity design and integrated antennas, setup is quick, and the compact size is ideal for mobile installations and confined spaces.

Main features

• Complete vocal set: 2× HT40 Mini handheld transmitters (dynamic, cardioid) + SR40 Mini2 dual receiver.
• Band and frequencies: ISM2 (864.375 MHz) and ISM3 (864.850 MHz) , unlicensed use in the EU.
• Technology: HDAP for clear, natural sound.
• Audio bandwidth: 40 Hz – 20 kHz.
• Microphone autonomy: up to 30 h with 1× AA.
• Indicators: Three LEDs per channel on the receiver (power, RF OK, audio clip); low battery LED and ON/OFF/MUTE switch on the transmitters.
• Receiver outputs: 2× balanced 6.3 mm TRS jacks (one per channel) with adjustable level .
• Radio frequency: FM modulation; typical power 10 mW ; fixed (non-switchable) channels.
• Receiver power supply: 110–240 V AC switching power supply with international adapters (EU/UK/US; depending on batch).
• Design: Ultra-compact, stationary non-diversity receiver.

Product benefits

• Ready for immediate installation: plug-and-play system with predefined frequencies and visual LED monitoring.
• Fewer battery changes: up to 30 hours per microphone with one AA.
• Easy integration: balanced 6.3mm outputs per channel and volume control to adjust levels.
• Operation without formalities: fee-free use and registration in the European ISM band (863–865 MHz).

Use cases

• Lead vocals and backing vocals in performances at venues, bars, and local festivals.
• Corporate and educational events with two simultaneous speakers.
• Backline and rental businesses that require robust, affordable, and easy-to-use equipment.

Frequently Asked Questions

Can I use more than one system at a time?
It is possible to combine this set with other WMS40 Mini on different ISM bands (e.g. ISM1/ISM2/ISM3) to operate several simultaneous channels within the 863–865 MHz range, minimizing interference.

Are the receiver outputs balanced?
Yes, the SR40 Mini2 Dual offers two balanced TRS jack outputs (one per channel) with level control.

What does the set include?
Typically: SR40 Mini2 Dual receiver , 2× HT40 Mini microphones , 110–240V switching power supply with adapters (EU/UK/US) and AA batteries (inclusion may vary depending on distributor/batch).

Description for projects

AKG WMS40M2VOCSTBDISM2-3 UHF wireless vocal system (WMS40 Mini2 Dual Vocal Set) with 2× HT40 Mini (cardioid dynamic) and SR40 Mini2 Dual receiver; fixed frequencies ISM2 864.375 MHz and ISM3 864.850 MHz ; HDAP ; audio bandwidth 40 Hz–20 kHz ; FM modulation; typical RF power 10 mW ; non-diversity receiver with 2× balanced TRS 6.3 mm outputs and level control; battery life per transmitter up to 30 h with 1× AA; receiver power supply 110–240 V AC (EU/UK/US adapters).