Designed for mobile journalists, videographers, and vloggers, the Comica BoomX-U U2 is a compact, true wireless microphone system with two microphones and just one receiver. It delivers reliable transmission with a clear sound at a distance up to 394' and offers a complete solution for recording dialogue, interviews, and speech with two people talking simultaneously—directly to a mirrorless/DSLR camera, camcorder or a mobile device.

The lightweight BoomX-U U2 consists of two compact clip-on transmitters each with its own built-in omnidirectional microphone and a separate lavalier microphone. It also comes with a small receiver that mounts on and plugs directly into your camera. Additionally, the included TRRS output cable gives you the option to plug the receiver into any smartphone equipped with a headphone jack. The XLR output cable is for use with professional camcorders.

The system offers 48 frequencies to choose from to avoid wireless signal interference. The built-in rechargeable batteries provide up to 6 hours of operation. Versatile and extremely easy to use with simple controls, the BoomX-U U2 is well suited for content creators of any experience level.

Two Microphones into One Receiver

• The two-channel receiver allows you to save space on your shooting rig by using a single receiver to simultaneously receive signals from the two mic/transmitters.
• The receiver features a belt clip, which also doubles as a shoemount adapter for your camera.
• In the absence of a smartphone holder, the receiver can also be clamped to your smartphone using the belt clip.

Built-In Mics for True Wireless

• Each transmitter is equipped with a built-in omnidirectional microphone and a 3.5mm mic input that accepts the included lavalier microphone.
• For a truly wireless experience, the transmitter can be clipped on clothing without having to wire yourself or your talent. You can also hold the transmitter in your hand and use it as a handheld microphone.
• The transmitter is equipped with a low-cut filter to reduce traffic and appliance rumble noise.
• The On/Off switch doubles as a mute button.

Lavalier Mics Included

• For a more discreet setup, use the small lavalier microphone, which can be easily concealed away from the camera's eye.

Easy-to-Operate Wireless

• This easy-to-use system features an auto-scan function that searches among 48 frequencies to find the cleanest available one for you, while the built-in infrared sync makes linking the transmitters and receiver a snap.
• The two receiver antennas can be raised 180° to increase the wireless signal reception range.
• Dedicated gain buttons on the receiver allow quick and effortless adjustment of the signal level for each microphone independently.
• The receiver and the transmitters have a display that shows signal strength, audio level, mono/stereo configuration, and battery life. The display can be flipped to accommodate your viewing angle.
• You have the option to switch between mono or stereo on the receiver: Recording in mono combines both microphones on both the left and right side of your audio track. Recording in stereo puts one person on the left and the other person on the right, allowing you to isolate each person's dialog and adjust each level individually later in post.
• The transmitters and the receiver are powered via a built-in lithium-ion rechargeable battery that provides 6 hours of operating time. 

Monitor in Real Time

• If your camera doesn’t have a headphone jack, you can monitor your sound via the receiver’s 3.5mm headphone output while recording to ensure that you are capturing a clean signal.

System

Wireless TransmissionAnalog UHF

Number of RF Channels48

Included Transmitters2 x Clip-On with Microphone

DiversityNon-Diversity

RF Frequency Band568.125 to 579.875 MHz

RF Channel ScanningAuto-Scan

Max Operating Range393.7' / 120 m (Line of Sight)

Max Systems per Setup2

Latency<20 ms

Receiver

Form FactorCamera-Mount

Mounting OptionsBelt Clip, Shoe-Mount (with Included Hardware)

Antenna2 x External (Side-Mount)

Number of Audio Channels2

Audio I/O1 x 1/8" / 3.5 mm TRS Female Unbalanced Output
1 x 1/8" / 3.5 mm TRS Female Unbalanced Headphone Output

USB/Lightning Connectivity1 x USB Type-C (Charging)

Approximate RF Sensitivity-90 dBm

Power RequirementsBattery

Battery Type1 x Built-In Rechargeable

Internal Battery Capacity600 mAh

Approx. Battery Life6 Hours (Lithium Rechargeable)

Display & Indicators1 x LCD (AF Level, Battery Status, Output Level)

HousingPlastic

Operating Temperature32 to 122°F / 0 to 50°C

Dimensions1.9 x 0.9 x 2.6" / 49 x 22 x 66 mm

Weight1.9 oz / 55 g

Transmitter

Form FactorClip-On with Microphone

RF Output Power15 mW

Audio I/O1 x 1/8" / 3.5 mm TRS Female Unbalanced Input (Lockable)

MutingOff/On Switch

Auto-Level ControlNo

Signal ProcessingHigh-Pass Filter:

Frequency Response80 Hz to 20 kHz

Sync MethodIR

Antenna1 x Internal

Power RequirementsBattery

Battery Type1 x Built-In Rechargeable

Internal Battery Capacity600 mAh

Approx. Battery Life6 Hours (Lithium Rechargeable)

USB/Lightning Connectivity1 x USB Type-C (Bus Power, Charging)

Display & Indicators1 x LCD (Audio Level, Battery Status, Mute, Signal Strength)

HousingPlastic

Operating Temperature32 to 122°F / 0 to 50°C

Dimensions1.9 x 0.9 x 2.6" / 49 x 22 x 66 mm

Weight1.7 oz / 47 g

Microphone

Form FactorIntegrated

Sound FieldMono

Polar PatternOmnidirectional

Microphone 2

Form FactorLavalier

Sound FieldMono

Polar PatternOmnidirectional

Output Connectors1 x 1/8" / 3.5 mm TRS Male Unbalanced

Packaging Info

Package Weight1.37 lb

Box Dimensions (LxWxH)9.1 x 6 x 3.1"