U384

This four channel UHF one to four wireless microphone system is a cost-effective multi-user wireless audio device designed for scenarios such as family karaoke, multi-user meetings, small stage performances, teaching speeches, and store activities. Adopting DSP chip frequency locking technology, equipped with four fixed frequency UHF transmission of 630.85MHz&661.85MHz&730.65MHz&761.85MHz, built-in noise reduction function and AA battery power supply design, equipped with four channel independent control and high-definition LCD display screen, achieving stable signal, high fidelity voice and convenient operation, providing efficient and stable wireless pickup solution for multiple people to use at the same time.

Core Technologies & Performance Highlights

1. Fixed-Frequency UHF Transmission with DSP Chip Frequency Lock

Operates in four fixed UHF frequency bands: 630.85MHz, 661.85MHz, 730.65MHz, and 761.85MHz. Equipped with DSP chip frequency locking technology, it delivers frequency stability of ±10ppm and RF power of 10dBm. No complex frequency searching or pairing is required; the system locks onto a stable frequency immediately upon power-up, completely eliminating signal drift. It also features strong anti-interference capabilities, effectively avoiding signal crosstalk from surrounding electronic devices such as mobile phones and WiFi routers. This ensures stable and pure four-channel audio transmission, supporting up to four simultaneous users without interference.

2. Low Distortion + Built-In Noise Reduction for High-Fidelity Vocals

• Audio Frequency Response: 70Hz~18kHz, fully covering the core vocal frequency range. It delivers rich, full bass, natural and transparent midrange, and clear, bright treble, balancing the power needed for singing with the clarity required for speech.
• Distortion: Only 0.1%, capturing vocals with delicate realism, free from noise and clipping, to meet professional-grade vocal pickup requirements.
• Built-In Noise Reduction: Equipped with an internal noise reduction chip that effectively filters out environmental background noise, improving separation between vocals and background sounds. Clean vocals can be captured even in noisy gatherings or events.

3. Cardioid Dynamic Microphone Capsule for Precise Pickup and Anti-Feedback

Features a cardioid dynamic coil microphone capsule, designed to precisely focus on vocals from the front, significantly suppressing environmental noise and interference from the sides and rear, and effectively reducing the risk of feedback. It also enhances vocal clarity, adapting to the pickup needs of various scenarios such as multi-person turn-taking, stage choruses, and teaching speeches.

4. Stable 30-50 Meter Transmission Range

Optimized dual-antenna reception technology enables stable transmission over 30-50 meters in open environments. This meets the usage requirements of medium-to-long-distance scenarios such as home living rooms, small conference rooms, and store stages. Users are free to move while singing or speaking, completely breaking free from cable constraints for greater flexibility.

User-Friendly Design & Practical Functions

1. Four-Channel Independent High-Definition LCD Display

The receiver is equipped with an integrated high-definition LCD screen that simultaneously displays key operational data for A/B/C/D four channels:

• Operating frequency (e.g., 630.65MHz, 661.85MHz, 730.65MHz, 761.85MHz)
• Channel number and RF (Radio Frequency) signal status
• Real-time monitoring of each microphone's signal status, allowing users to clearly grasp the equipment's operation even when four users are using it simultaneously, for greater peace of mind.

2. Four Handheld Microphones Configuration

• Ergonomic Handheld Microphones: Four handheld microphones with a minimalist black body design. The handle fits the hand comfortably, reducing fatigue during extended use.
• AA Battery Power: Supports standard AA batteries. Each microphone provides 2-4 hours of runtime, with convenient battery replacement, no waiting for charging, making it ideal for high-frequency usage scenarios.
• On-Board Display and Controls: Each microphone features a small display screen and a power switch, clearly showing the frequency for intuitive operation, making it easy for beginners to use.

3. Compact Four-Channel Independent Control Receiver

• Dual High-Gain Antennas: Ensure stable signal reception, reducing transmission dead zones and guaranteeing the stability of all four channels working simultaneously.
• Four-Channel Independent Control: The panel is equipped with independent buttons and control modules for A/B/C/D four channels, allowing you to adjust the volume and working status of each microphone separately, flexibly adapting to the volume needs of four-person choruses and multi-user speeches.
• Compact Portable Body: With a small footprint, it requires no rack installation and can be placed directly on a desktop, making it ideal for home, small events, and mobile use.
• Standard Power Switch: One-click control of device start/stop, easy to operate, adapting to the usage needs of different scenarios.

Product Configuration

Microphone *4

Receiver *1

AA batteries *8

Power adapter *1

Antenna *2

6.35 audio cable *1

Anti-drop ring *2

Anti-spray cotton *2

Charging cable *1

Weight: 1.26g

specification 28.5*24*12.3cm

Applicable Scenarios

✅ Home Multi-User Karaoke / Gatherings: The four-channel design allows four people to sing simultaneously, with clear vocals and a stable signal to create an immersive home party atmosphere.

✅ Small Stages / Multi-User Performances: The 30-50 meter transmission range and cardioid capsule are ideal for small commercial shows, campus events, wedding warm-ups, band choruses, and other multi-person pickup scenarios.

✅ Teaching / Meetings / Training: Four-channel independent pickup adapts to scenarios such as classroom group teaching, corporate meetings, training lectures, and store promotions requiring multiple speakers.

✅ Live Streaming / Short Video Production: The multi-user design and stable signal are perfect for indoor multi-person live streaming and short video shooting, improving overall sound quality.

Product Advantage Summary

Multi-User Compatibility

1-to-4 design with four independent working channels, meeting the simultaneous usage needs of 2-4 people.

Signal Stability

DSP frequency locking + four fixed frequencies, ±10ppm high stability with no signal drift or frequency shifting.

Sound Quality Performance

70Hz-18kHz frequency response + 0.1% low distortion + built-in noise reduction for clear, delicate vocals with strong anti-noise capability.

Easy Operation

Ready to use right out of the box with no debugging required, AA battery power for convenient replacement, beginner-friendly.

Scenario Coverage

30-50 meters stable transmission, adapting to multiple scenarios including home, stage, meeting, teaching, and live streaming.