Comica Audio CVM-WM300B Two-Person Wireless Microphone System

Product #72700 | SKU CVM-WM300B | Comica Audio
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Features

  • For Mobile Journalism, Videography.
  • Wireless Handheld Microphone.
  • Omnidirectional Lavalier Mic.
  • Bodypack Transmitter.
  • 2-Channel Camera-Mount Receiver.

Description

Designed for mobile journalists, news gatherers, and videographers, the Comica Audio CVM-WM300B Two-Person Wireless Microphone System is a complete solution for recording dialogue, interviews, and speech to your video rig. Record one or two subjects from up to 120m away, and run audio to your camera, DSLR, or camcorder while monitoring through headphones in real time. Locking connections on the receiver and bodypack transmitter eliminate unintended cable disconnects.

With an omnidirectional lavalier microphone, a bodypack transmitter, a wireless handheld mic/transmitter, a two-channel receiver, multiple cables, mounting accessories, and a carry case, the CVM-WM300B has everything you need for seamless audio integration into your video production setup. Its 96 channels allow interference-free signal quality and easy setup thanks to auto-scan channel selection and automatic IR synchronisation. The wireless handheld mic is powered via two AA batteries (available separately), while the receiver and bodypack transmitter are powered via built-in 2000mAh rechargeable batteries, which provide up to eight hours of standby time and can be recharged via USB.

Key Features:

Two Channels in One Receiver:
  • The CVM-WM300B features a two-channel receiver with dual external antennas and multiple mounting options, allowing you to save space on your shooting rig by using a single receiver to simultaneously accept signals from two transmitters. Affix the receiver to a standard tripod, or use the included shoe-mount accessory to mount it on your camera, DSLR, or camcorder.
  • The high-resolution backlit LCD screen shows vital information such as battery status for the receiver and both transmitters, audio level, and group/channel selection.
  • Select mono output mode when using a single transmitter or recording signal from both transmitters to a mono camera input. Switch to stereo output mode to record each transmitter to a separate audio channel (Group A to the left channel, Group B to the right channel).
  • The CVM-WM300B includes two audio cables—one 3.5mm and one 3.5mm to XLR—for connecting the receiver's volume-adjustable 3.5mm line output to the input of your camera, DSLR, or camcorder. A separate 3.5mm port is provided for real-time monitoring through headphones.
Bodypack Transmitter and Lavalier Microphone:
  • The CVM-WM300B includes a bodypack transmitter and a lavalier microphone for convenient mic placement on your subject in interviews, documentaries, vlogs, conferences, and more. The microphone's locking 3.5mm plug screws into place to prevent accidental disconnection.
  • By utilising an omnidirectional polar pattern, the lav mic offers 360° sound pickup, which is more forgiving to your subject's head movements. Fit the supplied windbuster on the lav mic to significantly reduce noise from wind and rustling of clothes.
  • The transmitter's 3.5mm input can accept line-level signal should you need to do a camera hop; route the output of a mixer or field recorder into the transmitter's line input to wirelessly stream the audio mix to the receiver.
Wireless Handheld Microphone/Transmitter:
  • The wireless handheld microphone is perfect for news gathering, live vocal performances, guest speakers, and more. Its built-in transmitter ensures reliable wireless connectivity to the camera-mount receiver.
  • Dedicated switches are provided for easy switching of the low-cut filter and high or low transmission power.
Versatile Power Options:
  • Power the bodypack transmitter and receiver via their internal rechargeable batteries for up to eight hours. Alternatively, power them with external USB battery packs or recharge the internal batteries via USB. With such versatility, you can keep working on long shoots.
  • The wireless handheld microphone is powered via two AA batteries (available separately). Simply unscrew the bottom section to access the battery compartment.
Essential Features:
  • Maximum operating range of approximately 120 line-of-sight or 80m with obstruction.
  • Utilises the UHF FM band in two groups—Group A for 520.0 to 548.5 MHz and Group B for 550.0 to 578.5 MHz.
  • 96 channels with auto-scan selection for interference-free operation.
  • Fast automatic sync via IR.
  • Selectable group (A, B, or A/B) via side-panel switch on receiver.
  • Switchable stereo/mono audio output on receiver.
  • 16-level volume adjustment on bodypack transmitter.
  • Selectable mic- or line-level input on bodypack transmitter.
  • Transmitter low-cut filter reduces rumble and low-frequency buildup.
  • Seletable high/low transmitting power; use low-power mode to reduce power consumption when working at close range, or switch to high-power mode to improve signal quality when working at greater distances.
  • Transmitter power buttons double as mute switches (long press for power, short press for mute).
  • Metal body construction provides efficient shielding against EMI.
  • Includes carrying case for simplified transport.

Specifications

System
Wireless Transmission Analogue UHF
Number of RF Channels 96
Included Transmitters 1 x Bodypack with Microphone
1 x Handheld
Diversity Non-Diversity
RF Frequency Band A: 520 to 548.5 MHz
B: 550 to 578.5 MHz
RF Bandwidth Up to 57 MHz
Max Operating Range 393.7' / 120 m (Line of Sight)
262.5' / 80 m (with Obstruction)
Latency <20 ms
Encryption None
Modulation FM
Receiver
Form Factor Camera-Mount
Mounting Options Belt Clip or Shoe-Mount (with Included Hardware)
Antenna 2 x 1/4 Wave External, Fixed (Top-Mount)
Number of Audio Channels 2
Audio I/O 1 x 1/8" / 3.5 mm TRS Female Unbalanced Line Output (Lockable)
1 x 1/8" / 3.5 mm TRS Female Unbalanced Headphone Output (Lockable)
Network I/O None
Word Clock I/O None
USB/Lightning Connectivity 1 x Micro-USB (Bus Power, Charging)
Approximate RF Sensitivity -95 dBm
Spurious Emission: <-60 dBc
Power Requirements Battery or Bus Power (USB)
Battery Type 1 x Built-In Rechargeable (Included)
Internal Battery Capacity 2000 mAh
Approx. Battery Life 8 Hours
Display & Indicators 1 x Backlit LCD (AF Level, Battery Status, Channel, Group, Level, Power, RF Level, Sync, Transmitter Battery Status)
2 x LED (Data Transmission, Sync)
1 x LED (Recharging)
Housing Metal
Operating Temperature 32 to 122°F / 0 to 50°C
Storage Temperature -4 to 140°F / -20 to 60°C
Dimensions 2.5 x 3.3 x 0.9" / 63.5 x 84 x 23 mm (without Antennas)
Transmitter
Form Factor Bodypack with Microphone
RF Output Power 10 / 30 mW (Switchable)
Audio I/O 1 x 1/8" / 3.5 mm TRS Female Unbalanced Input (Lockable)
Pad None
Muting Off/On Switch
Signal Processing High-Pass Filter:
Sync Method IR
Antenna 1 x 1/4 Wave External, Fixed
Power Requirements Battery or Bus Power (USB)
Battery Type 1 x Built-In Rechargeable (Included)
Internal Battery Capacity 2000 mAh
Approx. Battery Life 8 Hours
USB/Lightning Connectivity 1 x Micro-USB (Bus Power, Charging)
Display & Indicators 1 x Backlit LCD (Audio Level, Battery Status, Channel, Group, Mute, Power, RF Output Power)
1 x LED (Audio Level)
1 x LED (Sync)
1 x LED (Recharging)
Housing Metal
Operating Temperature 32 to 122°F / 0 to 50°C
Storage Temperature -4 to 140°F / -20 to 60°C
Dimensions 2.5 x 3.3 x 0.9" / 63.5 x 84 x 23 mm (without Antennas)
Microphone
Form Factor Lavalier
Colour Black
Sound Field Mono
Operating Principle Pressure Operated
Capsule Electret Condenser
Polar Pattern Omnidirectional
Frequency Range 30 Hz to 20 kHz
SNR 65 dB
Maximum SPL 100 dB SPL
Sensitivity -35 dB
Output Connectors 1 x 1/8" / 3.5 mm TRS Male Unbalanced (Lockable)
Cable Length 3.94' / 1.2 m
Transmitter 2
Form Factor Handheld
RF Output Power 10 / 30 mW (Switchable)
Audio I/O None
Pad None
Muting Off/On Switch
Signal Processing High-Pass Filter:
Sync Method IR
Antenna 1 x Internal, Fixed
Power Requirements Battery
Battery Type 2 x AA (Not Included)
USB/Lightning Connectivity None
Display & Indicators 1 x Backlit LCD (Battery Status, Channel, Group, Mute, Power)
Housing Metal
Operating Temperature 32 to 122°F / 0 to 50°C
Storage Temperature -4 to 140°F / -20 to 60°C
Dimensions 2.1 x 10" / 53.5 x 253 mm
Microphone 2
Form Factor Handheld Capsule
Colour Black
Sound Field Mono

In The Box

  • Comica Audio CVM-WM300B Two-Person Wireless Microphone System.
  • Dual-Channel Receiver.
  • Bodypack Transmitter.
  • Omnidirectional Lavalier Microphone.
  • Wireless Handheld Microphone/Transmitter.
  • Male 3.5mm to Male 3.5mm Output Cable.
  • Male 3.5mm to Male XLR Output Cable.
  • Micro-USB Charging Cable.
  • Wind Muff.
  • Belt Clips.
  • Camera Cold Shoe Mounts.
  • Carry Case.

Reviews

5.0 (based on 1 rating)
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  • Robert
    I purchased this unit because it did everything needed four our reporter to cover press conferences. Bit of a Mish to configure because manual and equipment A & B are opposite but after that it tests fine. Quality is excellent both hand held and lavalier. Battery life appears to be good. Construction is sturdy. Essential for field work. Case is robust and survived air journey bus journey over rough terrain. Operation is simple enough for Journo. All in all good value for money. Let's see how it lasts. The environment is not gear friendly.
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Details

  • Product: Comica Audio CVM-WM300B Two-Person Wireless Microphone System
  • Manufacturer: Comica Audio
  • Model: CVM-WM300B
  • SKU: CVM-WM300B
  • RM Product #: 72700
  • Length Meters: 1.2 m
  • Length Feet: 3.94 ft
  • Battery: Lithium-Ion Included

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