Sony UTX-M40 Wireless Handheld Cardioid Microphone Transmitter, 25UC: 536 to 608MHz

SKU: SOUTXM4025 MFR: UTX-M40/25
Earn VIP Reward Points

Key Features

  • Capture pristine audio with this Sony wireless microphone transmitter for clear sound.
  • Experience reliable performance with a crystal-controlled PLL synthesizer for stable signal.
  • Enjoy extended usage with an 8-hour battery life, perfect for long events and recordings.
  • Achieve professional sound quality with a dynamic, uni-directional microphone capsule.
  • Easily adjust audio levels with the attenuator, ensuring optimal sound in any environment.
  • This wireless handheld microphone is ideal for lectures, presentations, and performances.
See More Product Details
Special Order?Estimated to Ship: 08/17/2025
Free Shipping

See Options

1

Protect your gear with Adorama Protect.* Learn more

1 Year

$39.99

2 Year

$69.99

3 Year

$79.99

Available to U.S. customers only.

Need help? Ask our experts.

Overview
Compare
Specs
Protection
Q&A

Questions & Answers

Reviews about this item

Review Summary

Select a plan in the Add Protection section above and purchase with this product by clicking “Add to Cart”.

image-protection

TRUSTED PROTECTION PLANS, EXCEPTIONAL SERVICE.

Invest In Your Gear and Peace Of Mind!

Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.

Repair or Replacement

Repair or Replacement

If we can’t fix it, we’ll replace it at no additional cost.

Accidental Damage

Accidental Damage

Protect your product from drops, spills, and more.

Peace of Mind

Peace of Mind

Enjoy your gear without fear. We have you covered!

Failure Protection

Failure Protection

When regular use of your product over time results in mechanical or electrical failure.

Zero Deductible

Zero Deductible

We will never charge you a deductible after the purchase of a plan.

Customer-Focused Support

Customer-Focused Support

Our claims process is simple & easy and our customer service team is happy to help.

Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500

Sony UTX-M40 Specifications

  • Oscillator Type

    Crystal-controlled PLL synthesizer

  • Antenna Type

    1/4 Lambda wavelength wire antenna

  • Carrier Frequency

    25UC : 536.125MHz to 607.875MHz (UHF-TV channels 25 to 36)

  • RF Output Power

    30mW/5mW selectable

  • Capsule Type

    Dynamic

  • Directivity

    Uni-directional

  • Reference Audio Input Level

    -55 dBV (GAIN MODE set to NORMAL, 0 dB attenuation)

  • Maximum Audio Input Level

    151 dB SPL (21 dB attenuation, using supplied microphone unit)

  • Audio Attenuator Adjustment Range

    0 dB to 21 dB (3 dB steps)

  • Frequency Response

    70 Hz to 18 kHz (Typical)

  • Signal-to-Noise Ratio

    60 dB (-60 dBV, 1 kHz sine wave input)
    102 dB (GAIN MODE set to AUTO GAIN, max deviation, A-weighted)
    96 dB (GAIN MODE set to NORMAL, max deviation, A-weighted)

  • Distortion

    0.9% or less (-60 dBV, 1 kHz input)

  • Audio Delay

    Approx. 0.35 ms

  • Tone Signal Frequency

    In UWP-D compander mode: 32.382 kHz
    In UWP compander mode: 32 kHz
    In WL800 compander mode: 32.768 kHz

  • Display

    OLED

  • Power Requirements

    DC 3.0 V (two LR6/AA size alkaline batteries)
    DC 5.0 V (supplied from USB Type-C connector)

  • Battery life

    Approx. 8 hours with output power of 30 mW
    Battery life has been measured with two Sony LR6/AA size alkaline batteries at 25 deg. C (77 deg. F)

  • Operating Temperature

    0 to 50 deg. C (32 to 122 deg. F)

  • Storage/Transport Temperature

    -20 to 55 deg. C (-4 to 131 deg. F)

  • Dimensions (Dia.xL)

    48 x 258mm (1.89 x 10.16")

  • Weight

    Approx. 255g (8.99 oz) (excluding batteries)

  • UPC Code

    027242918696

About Sony UTX-M40

An essential tool for today's content creators, the UTX-M40 Wireless Handheld Cardioid Microphone Transmitter, operating in the 25UC: 536 to 608MHz frequency range, is designed to meet the increasing demand for high-quality audio in the video production industry. This device is a perfect companion for electronic news gathering (ENG), electronic field production (EFP), documentary filming, and wedding videography, thanks to its superior sound quality, reliable RF transmission, and true double tuner diversity reception.

The UTX-M40 utilizes advanced digital audio processing technology by Sony, ensuring high-quality sound with improved transient response performance. This technology enhances the clarity and richness of audio capture, making it an invaluable asset for professional videographers and audio engineers.

One of the standout features of this wireless handheld microphone transmitter is its optional digital audio interface. This feature allows for direct digital sound recording with many Sony professional camcorders and Alpha interchangeable lens cameras via the SMAD-P5 Multi Interface MI shoe adaptor. By bypassing A/D and D/A conversion stages, it further ensures excellent sound quality, making your audio capture as clear and authentic as possible.

The UTX-M40 also boasts Sony's uniquely user-friendly NFC SYNC feature, which allows for quick, intuitive, and secure channel setting between the transmitter and receiver. This feature simplifies the setup process, saving you valuable time on location.

Despite its advanced features, the UTX-M40 maintains a light and compact design. Its reduced system size and weight provide superior mobility, making it an ideal partner for small camcorders and interchangeable lens digital cameras. Whether you're on a bustling news scene, a remote production location, or capturing the magic of a wedding, the UTX-M40 Wireless Handheld Cardioid Microphone Transmitter is a reliable choice for high-quality audio capture.

Sony UTX-M40 Features

  • High quality sound with Sony digital audio processing
  • NFC SYNC function for quick and easy secure channel setting (IR sync capability with URX-P03, URX-P03D and URX-S03D receivers)
  • Interchangeable head for wide choice of microphone capsules
  • Auto gain mode volume control
  • +15 dB gain volume boost mode for off-mic audio
  • Transmitter frequency sent to receiver for matching multiple receivers to one transmitter
  • Variable muting function
  • Compatibility with Sony WL-800/UWP/UWP-D series
  • High visibility OLED display, ideal for indoor/outdoor use

Warranty Information

This product has a limited warranty of 12 months for parts and 3 months for labor.

Product Documents

User Manual

Key Features

  • Capture pristine audio with this Sony wireless microphone transmitter for clear sound.
  • Experience reliable performance with a crystal-controlled PLL synthesizer for stable signal.
  • Enjoy extended usage with an 8-hour battery life, perfect for long events and recordings.
  • Achieve professional sound quality with a dynamic, uni-directional microphone capsule.
  • Easily adjust audio levels with the attenuator, ensuring optimal sound in any environment.
  • This wireless handheld microphone is ideal for lectures, presentations, and performances.

What's in the box:

  • Sony UTX-M40 Wireless Handheld Cardioid Microphone Transmitter
  • Microphone Holder
  • Sony 1 Year Warranty