SONY Wireless Handheld Mic with Built-in Transmitter (25)

SONY Wireless Handheld Mic with Built-in Transmitter (25) is a wireless handheld microphone transmitter made for ENG, interviews, documentaries, weddings, remote production, and general field audio work. From the supplied source, the Sony UTX-M40 uses a dynamic capsule, uni-directional pickup, and operates on the UC25 frequency range from 536.125 to 607.875 MHz.

This is the kind of mic that feels natural for reporters, presenters, and interview subjects. The transmitter is built into the handheld body, so the speaker can move freely without a cable running back to the camera or audio position.

Highlights

• Wireless handheld microphone transmitter for field and production use
• UC25 frequency range: 536.125 to 607.875 MHz
• Dynamic unidirectional capsule for focused voice pickup
• 70 Hz to 18 kHz frequency response
• OLED display, NFC sync, USB-C power support, and audio attenuator control

Quick Specs & Uses

• Model: Sony UTX-M40 wireless handheld cardioid microphone transmitter
• Carrier frequency, UC25: 536.125 MHz to 607.875 MHz
• Capsule type: Dynamic
• Directivity: Uni-directional
• Antenna type: 1/4 λ wavelength wire antenna
• Audio attenuator adjustment: 0 dB to 21 dB, 3 dB steps
• Audio delay: Approx. 0.35 ms
• Display: OLED
• Distortion: 0.9% or less
• Frequency response: 70 Hz to 18 kHz typical
• Maximum audio input level: 151 dB SPL
• RF output power: 30 mW / 5 mW selectable for UC models
• Reference audio input level: -55 dBV, gain mode set to normal, 0 dB attenuation
• Signal-to-noise ratio: 60 dB; 102 dB in AUTO GAIN max.; 96 dB in NORMAL max.
• Power requirements: DC 3.0V with two LR6/AA batteries or DC 5.0V from USB Type-C connector
• Battery life: Approx. 8 hours at 30 mW output power
• Dimensions: ø48 x 258 mm / 1 15/16 x 10 1/4 in
• Mass: Approx. 255 g / 9.0 oz, excluding batteries
• Operating temperature: 0°C to 50°C / 32°F to 122°F
• Storage / transport temperature: -4°F to 140°F / -20°C to +60°C

Why It Helps

The UTX-M40 is practical when the production needs a handheld interview mic without a separate bodypack or cable. For ENG crews, event teams, and documentary shooters, that keeps the microphone simple for the person holding it and cleaner for the camera operator.

The dynamic unidirectional capsule helps keep the pickup aimed toward the speaker. In the real world, that matters when working around crowds, room noise, or outdoor ambience where the mic needs to stay focused on speech.

With OLED status display, NFC sync, AA battery operation, and USB-C power support, the mic stays easy to manage during setup. Pair it, check the display, set the level, and get back to the shot.

System Characteristics

• Built-in transmitter design keeps the handheld microphone cable-free
• Dynamic unidirectional capsule for focused speech capture
• Audio attenuator control from 0 dB to 21 dB in 3 dB steps
• NFC sync for quick channel setting with compatible receivers
• OLED display for clear status checking in indoor or outdoor work

What’s In The Box

• 1 x Sony UTX-M40 Wireless Handheld Cardioid Microphone Transmitter (UC25: 536 to 608 MHz)
• 1 x Microphone Holder

Trusted Seller

Coremicro ships fast from the U.S. and supports production gear with a team familiar with real broadcast and field workflows.