SM-U4 One-to-four wireless microphone system

SM-U4 One-to-four wireless microphone system

The Shengman Professional Wireless Microphone System employs independent modular non-diversity receivers with dedicated channel selection design. A single channel failure does not affect the normal operation of other channels, ensuring convenient and efficient maintenance. Equipped with automatic frequency scanning and planning capabilities, it intelligently detects and avoids interfering channels while rapidly locking onto available frequencies. Combining digital frequency locking technology with PLL RF stabilization effectively isolates co-channel/adjacent-channel crosstalk interference. Paired with low-latency transmission, transparent frequency response, and a wide dynamic range, it restores pure, authentic sound quality.

The system supports flexible pairing of handheld, lapel, and conference microphones to adapt to diverse scenarios: Handheld microphones feature a Type-C charging port (compatible with AA 1.5V NiMH rechargeable batteries, sold separately); The conference microphone incorporates a built-in lithium battery and Type-C charging port. Its base features a metal panel with a high-brightness IPS TFT display, while the aluminum alloy square microphone boom allows adjustable tilt angles, delivering a premium, sturdy build. The receiver boasts a high-contrast VA LCD display. Its intuitive user interface with dedicated function keys provides clear parameter visibility and swift setup, offering a stable, reliable audio solution for professional performances, conferences, speeches, and similar events.

Category:

Features:

1. Independent module non-diversity receiver with dedicated channel selection system. If one channel malfunctions, others remain operational for easy maintenance;

2. Automatic frequency scanning and planning detects and avoids interfering channels, rapidly locking onto available frequencies;

3. Digital frequency locking technology rejects co-channel interference, effectively isolating same-frequency or adjacent-channel crosstalk;

4. Reliable PLL RF stabilization delivers superior audio quality and wider dynamic range, ensuring peak sound performance in any environment;

5. Low latency, transparent frequency response, and wide dynamic range ensure nothing compromises pure, authentic sound;

6. Comprehensive overview, quick setup, and key function shortcuts: The redesigned user interface features a high-contrast VA LCD display, enhancing practical usability with instant preview of all critical parameters;

7. Handheld unit includes TPYC charging port (AA 1.5V NiMH rechargeable batteries sold separately); conference unit incorporates built-in lithium battery with TPYC charging port;

8. Conference base features a metal panel design with high-brightness IPS TFT display for clear content visibility. Square aluminum alloy microphone with adjustable tilt angle delivers a stable, premium aesthetic;

9. Handheld, belt pouch, and conference units can be freely combined.

 

Receiver Technical Specifications:

Receiving Range: Approximately 70M (First dropout)

Total Channels: 220CH

Frequency Response: 50Hz-18kHz

Sensitivity: -100dBm (12dB S/N AD)

Output Impedance: 2200Ω

Signal-to-Noise Ratio: >100dB (1kHz-A)

Bandwidth: 25MHz

Carrier Frequency Range: 630-690MHz; 540-590MHz; 800-850MHz

Antennas: 2 antennas

Features: Electronic power meter; Digital pilot tone; Independent module control

Power Supply: 12V 1A

 

Transmitter Technical Specifications:

Power Supply: Handheld belt pack: 2 x AA 1.5V batteries; Conference unit: Built-in lithium battery

Bandwidth: 30MHz

Frequency Spacing: 250KHz

Dynamic Range: >150dB

Carrier Deviation: ±5PPm ≤10KHz

RF Output Power: 20mW

Current: 120mA

 

Related products