AU680A XLR Wireless Audio Transmitter and Receiver Set Feature 1. Universal Compatibility with Versatile Connectivity: Equipped with XLR (InputOutput), 6.35mm, and 3.5mm ports, this set supports a wide range of professional audio devices. It seamlessly connects to microphones, mixers, speakers, guitars, cameras, and audio interfaces, making it ideal for stage performances, live broadcasts, studio recordings, and conference presentations. 2. Stable & Long-Range Wireless Transmission: Featuring high-gain dual antennas and advanced wireless technology, the system delivers anti-interference performance and a stable signal. Say goodbye to dropouts, crackles, or signal interference—even in complex RF environments. 3. Low Latency & Hi-Fi Sound Quality: Enjoy near-zero latency transmission for lip-sync accuracy in video recordings and live performances. The system supports high-fidelity audio transmission, restoring clear, rich, and distortion-free sound that meets professional studio standards. 4. Durable & Compact Metal Design: Crafted from a high-quality aluminum alloy shell, the device is heat-dissipating, wear-resistant, and built to withstand the rigors of professional use. Its compact and portable form factor fits easily into camera rigs, microphone stands, or gear bags—perfect for on-the-go creators. 5. Flexible Audio Adjustment: The receiver is equipped with gain control knobs and volume adjustment keys, allowing real-time tuning of input sensitivity and output volume. This ensures optimal audio levels in different environments, delivering professional sound quality tailored to your needs. Transmitter Parameters 1. Operating Voltage: 3.6-6V DC 2. Operating Current: Max 120mA 3. Ambient Temperature: -16-65 degrees Celsius 4. Actual Operating Frequency Range: 590-619MHz 5. Modulation Method: GFSK 6. Baud Rate: 2Mbps 7. Channel Spacing: 4MHz 8. Frequency Selection Method: Provides one-way cyclic channel selection 9. Frequency Stability: +-100KHz 10. Actual Operating Channels: 20CH 11. TransmitReceive Distance: 100 meters 12. Transmit Power: 1-100mV 13. Input Level: Max 1.0Vpk 14. Input Impedance: 10k ohm 15. Interfaces: XRL x 2, RCA x 1, 6.35mm x 1, 3.5mm x 1 16. 17. Inputoutput gain ratio: 1:01 18. Frequency response range: 20-20000Hz 19. Delay time: less than 0.5ms 20. Sampling rate: 64kHz 16bit 21. Signal-to-noise ratio: 95dB 22. Distortion: 0.3% 1kHz 23. Dynamic range: 90dB 24. Left and right channel isolation: 85dB Receiver Parameters 1. Operating Voltage: 3.6-6V DC 2. Operating Current: Max 40mA 3. Ambient Temperature: -16-65 degrees Celsius 4. Actual Operating Frequency Range: 590-619MHz 5. Receiver Sensitivity: -90dBm 6. Baud Rate: 2Mbps 7. Channel Spacing: 4MHz 8. Frequency Selection Method: Available in both automatic search and manual channel switching models 9. Frequency Stability: +-100kHz 10. Actual Operating Channels: 20CH 11. TransmitReceive Distance: 100 meters 12. Transmit Power: 1-100mV 13. Interfaces: XRL x 2, RCA x 1, 6.35mm x 1, 3.5mm x 1 14. Stereo Output Level 1: 30mW RL=32 OHM 15. Stereo Output Level 2: 50mW RL=32 OHM 16. Output Impedance: 1k OHM 17. Output-Input Gain Ratio: 1:01 18. Frequency Response: 20-20000Hz 19. Delay Time: Less than 0.5ms 20. Sampling Rate: 64kHz 16bit 21. Signal-to-Noise Ratio: 95dB 22. Distortion: 0.3% 1kHz 23. Dynamic Range: 90dB 24. Left and right channel isolation: 85dB