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The band B WMS40 Mini Single Vocal Set Wireless Microphone System from AKG features a single-channel SR40 Mini receiver and an HT40 Mini handheld transmitter, and is a true plug and play wireless solution. It provides clear audio sound and can be used to capture audio in several environments for applications such as live stage, rehearsals, conferences, and more.

The included HT40 handheld transmitter features a dynamic cardioid capsule for maximum gain before feedback. The SR40 receiver has a balanced 1/4" output connector, which connects to your mixer or amplifier. The WMS40 is a fixed frequency system and has an extremely long battery life of 30 hours on a single AA battery, and saves money in day-to-day operation. A universal power supply is also included.

More Information

Key Features

  • For Vocal and Speech Applications
  • SR40 Mini Single Wireless Receiver
  • HT40 Mini Wireless Handheld Transmitter
  • Single Fixed Frequency
  • Balanced 1/4" Jack Output
  • Runs 30 Hours on a Single AA Battery
  • Includes a Universal Power Supply

Technical Specification


Wireless Technology Analog
Included Transmitters 1 x Handheld
Diversity Non-Diversity
RF Frequency Band 661.1 MHz
RF Channel Scanning Auto-Scan
Max Operating Range 100' / 30.5 m
Max Transmitters per Band 1
Built-In Recorder No
Timecode Support No
Mobile App Compatible No
*As of January, 2023: Check with manufacturer for the most up-to-date compatibility
Encryption None
Receiver Type Tabletop / Rackmount
Mounting Options Rackmount (with Optional Hardware)
Rackmount Size 1 RU (1/2 Rack)
Antenna 1 x External (Front-Mount)
Number of Audio Channels 1
Audio I/O 1 x 1/4" TRS Balanced Output
Phantom Power Protection None
Network I/O None
USB/Lightning Connectivity None
Power Requirements AC/DC Power Adapter
AC/DC Power Adapter 100 to 240 VDC at 300 mA (Included)
DC Input Power 12 VDC
Display & Indicators 3 x LED (AF Level, Clip, Power, Sync)
Transmitter Type Handheld
RF Output Power Not Specified by Manufacturer
Audio I/O None
Pad None
Muting Mute Switch
Auto-Level Control No
Signal Processing None
Antenna 1 x Internal
Power Requirements Battery
Battery Type 1 x AA
Approx. Battery Life 30 Hours
USB/Lightning I/O None
Display & Indicators 1 x LED (Battery Status, Sync)
Microphone Type Handheld
Color Black
Sound Field Mono
Capsule Dynamic
Polar Pattern Cardioid
Operating Voltage None


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