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Wireless Lavalier Microphone for Live Streaming

Model: CM21

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Description: Product Introduction This product is a portable and multi-functional wireless lavalier microphone, including two transmitters and one receiver. Equipped with a built-in microphone, it supports 360° omnidirectional audio pickup. Adopting th

Products Description

Product Introduction                

This product is a portable and multi-functional wireless lavalier microphone, including two transmitters and one receiver. Equipped with a built-in microphone, it supports 360° omnidirectional audio pickup. Adopting the latest voice processing algorithm, it features AI noise reduction, gain control and other voice processing functions, with one-key noise reduction to retain only clear human voices. Utilizing 2.4G wireless technology, it ensures safe and stable transmission within a 100-meter unobstructed open area, delivering clear and stable recording performance in various environments. It meets the needs of scenarios such as meetings, interviews, live streaming, recorded broadcasting, and vlog shooting.


Key Customer Benefits


 High-Quality User Experience

Adopting professional lavalier microphone voice processing technology, it supports 360° omnidirectional audio pickup. The recorded audio features low distortion, low latency, and a wide frequency response range, accurately capturing sound details. It delivers clear, high-fidelity, and professional audio recording for scenarios including human voices and complex environmental sounds.

Equipped with a professional noise reduction chip, the device has a noise reduction button on the side for one-key audio noise cancellation—blocking external noise while retaining clear human voices. Noise reduction can also be disabled to preserve ambient sounds. The gain adjustment buttons allow users to manually adjust recording gain based on actual usage scenarios.

The receiver supports in-ear monitoring, enabling real-time audio playback during recording for optimal sound performance.

 Safe and Stable Transmission

Both the transmitter and receiver adopt 2.4G wireless transmission technology for flexible use. Adaptive frequency hopping technology significantly enhances anti-interference capability, supporting stable audio transmission within a 100-meter unobstructed open area. It ensures reliable performance in common environments such as live streaming studios, workspaces, and outdoor settings. Each receiver is equipped with an LED display, providing real-time visibility of signal status, mode status, noise reduction status, battery level, and charging status.

 Portable and Multi-Functional

Boasting a sleek and modern design, it can be used anytime, anywhere. It supports plug-and-play functionality and is easy to carry.

With a full-charge battery life of approximately 18 hours, it easily meets the demands of extended use.

Compatible with various operating systems, it works seamlessly with cameras, smartphones, camcorders, computers, sound cards, mixers, and other devices.


Function Features


   AI Noise Reduction

 Low Latency

 Real-Time Status Display: The receiver shows real-time gain level, battery status, noise reduction status, etc.

 Stable Reception at 100-Meter Long Distance

 New 2.4G Wireless Technology: Automatic pairing between transmitter and receiver

 Gain Control: Adjustable transmission gain (user-configurable)

 Windproof Design: Compatible with windshields to effectively suppress wind noise

 Anti-Vibration: Reduces vibration-induced impact on sound quality

 Compatible with All Smart Devices

 Lightweight and Portable

Product Parameters

Basic Information

Size φ45 (Diameter) * 22 (Height)

Color White

Weight Transmitter Net Weight: 21.6g (Single Unit)Receiver Net Weight: ≈ 26.1g

Battery Capacity 380mAh

Current Voltage 5V200mA

Usage Duration ≈18 hour

充电时长 ≈2.5小时

Connection Distance 100m

Connection The receiver can connect to mobile phones via Type-C and Lightning ports, or to cameras, computers and other devices via a 3.5mm audio jack.

Supported Operating Systems Android, iOS, HarmonyOS, Windows, macOS and other operating systems

Environmental Specifications Temperature: 0ºC to 44ºC

Humidity: 20% to 85% (non-condensing)

Storage Temperature: -10°C to 55°C

Noise Level: < 48 dB

Reverberation Time: < 0.5 seconds

Audio Features

Microphone Omnidirectional Microphone

Sensitivity: -32 dB

94 dB SPL @ 1 kHz

Signal-to-Noise Ratio (SNR): 65 dB

94 dB SPL @ 1 kHz, A-weighted

Microphone Audio Sampling Rate 48KHz

Frequency Response 100~24000Hz

Number of Microphones 1 Omnidirectional Microphone

Audio Characteristics AI Noise Reduction, Automatic Gain Control, Intelligent Dynamic Noise Reduction

Pickup Distance (Radius) 1m

Wireless Parameters

Operating Frequency 2.4GHz

Host Configuration

Interface Transmitter: Type-C InterfaceReceiver: Type-C Interface, 3.5mm Audio Jack

Button Transmitter: Power Key, AI Noise Reduction On/Off Key, Gain Control Key

Receiver: Power Key

Packing List Receiver × 1, Transmitter × 2, Windscreen × 2, 3-in-1 USB Charging Cable × 1, 3.5mm Audio Adapter Cable × 1, Type-C to Type-C Adapter × 1, Type-C to Lightning Adapter × 1, Warranty Card × 1, User Manual × 1


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