SM-U900D One-to-Two True Wireless Microphone System

Flagship-level stable transmission + superior anti-interference: True diversity dual-channel independent signal selection, paired with performance-grade phase-locked circuitry, noise-locked squelch control, and digital pilot technology. 200 selectable frequencies support operation with over 10 stacked units, delivering 250 meters of open-air transmission range. Reliable for touring performances and fixed installations, minimizing frequency dropouts. CPU bus control + multi-level noise monitoring + ID verification effectively block interference signals, maximizing transmission stability.

Intelligent operation + visual management: Dual-channel independent AFS auto-frequency scanning rapidly locks onto the least-interfered frequency; IR infrared one-touch frequency pairing synchronizes handheld/beltpacks to the same frequency with digital LED display confirmation; 3.4-inch HD full-view color screen supports Chinese/English switching and customizable startup interface, displaying core parameters like RF/AF signal strength, battery status, and frequency for intuitive operation; Standard RJ45 network interface connects to central control platforms for remote management and efficient maintenance.

Professional Sound Calibration + Flexible Adaptability: Preset digital audio equalizer simulates various microphone sound characteristics; built-in feedback suppression effectively reduces howling interference for pure, clear audio; supports optional handheld, headset, or lapel microphones to adapt to diverse scenarios like performances, conferences, and speeches.

Convenient antenna management + strong expandability: The main unit antenna is self-powered, allowing direct connection to logarithmic antennas (no splitter required). Supports antenna cascading for easy system setup and long-distance signal transmission, adapting to complex installation environments.

 

Category:

Product Features:

1. True diversity receiver with dual-channel independent signal selection system, minimizing frequency dropouts;

2. Dual-channel independent AFS automatic frequency search function, rapidly scans and locks onto the least-interfered frequency in the operating environment;

3. Independent digital display for channel and frequency on each channel, providing clear visibility of host operations with dual-color synchronized display;

4. High-definition 3.4-inch full-view color screen with clear display; customizable startup interface supporting Chinese/English switching;

5. One-touch synchronization via IR infrared pairing technology between receiver and transmitter;

6. Professional-grade phase-locked circuitry, combined with noise-locked squelch control and digital pilot technology. When the transmitter is off, pilot control mutes the AF signal to suppress noise while simultaneously silencing the corresponding receiver, ensuring effective isolation from interference signals;

7. High-definition color display indicates RF/AF signal strength, battery status, diversity channel selection (A/B), frequency, frequency group/channel, and other operational parameters;

8. Each channel operates in 100-group frequency increments; two distinct frequency groups provide 200 total configurations, supporting simultaneous operation of over 10 units in the same venue;

9. CPU bus control integrated with digital LCD interface enables intuitive operation and outstanding performance. Multiple noise monitoring circuits and a dedicated ID verification system deliver exceptional anti-interference capability;

10. Feedback suppression function effectively reduces feedback howling;

11. Preset digital audio equalizer simulates various microphone sound characteristics;

12. Compatible with handheld, headset, or lapel microphones. Handheld/beltpacks can simultaneously switch to the same frequency, with digital indicators synchronously displaying per group;

13. Standard RJ45 network interface connects to central control platforms for remote management;

14. Host antenna with power supply supports direct connection to log-periodic antennas (no splitter required) or cascading for simplified antenna system management and extended range transmission;

15. Open-air coverage range: 250 meters;

16. True diversity wireless system designed for touring and fixed installations, delivering maximum reliability, audio quality, and transmission stability.

 

Receiver Technical Specifications:

Receiving Range: Approximately 250M (first dropout)

Total Channels: 200CH

Frequency Response: 50Hz-18kHz

Sensitivity: -100dBm (12dBS/NAD)

Output Impedance: 2200Ω

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

Bandwidth: 25MHz

Carrier Frequency Range: 640-690MHz; 530-590MHz

Antenna: 2 antennas.

Features: Electronic battery level indicator, digital pilot tone

 

Transmitter Technical Parameters:

Power Supply: Handheld/Beltpack: AA 1.5V × 2 Conference Unit: AA 1.5V × 3

Bandwidth: 30MHz

Frequency Spacing: 250KHz

Dynamic Range: >150dB

Carrier Deviation: ±5PPm ≤10KHz

RF Output Power: 30mW

Current: 160mA