• 【Wireless Digital Audio Transmission】Provides high-quality wireless audio transmission with GFSK modulation and 2M bps data rate for crystal-clear sound reproduction.

• 【100-Meter Long Range】Achieves up to 100 meters transmission distance in open areas, allowing flexible placement of audio equipment throughout your home.

• 【Multi-Channel Selection】Features 10 working channels with 4MHz channel spacing and automatic frequency search for interference-free operation.

• 【Triple Input Mode Support】Supports three input modes: stereo audio input, standard microphone input, and monitor microphone input for versatile connectivity options.

• 【Professional Audio Quality】Delivers 20-20000Hz frequency response, 95dB signal-to-noise ratio, and less than 0.5ms delay for professional-grade audio performance.

Specifications:

• Model: AU680
• Operating Voltage: 3.6-6V DC
• Operating Current: Transmitter Max 120mA, Receiver Max 40mA
• Working Temperature: -16°C to 65°C
• Frequency Range: 590-619MHz
• Modulation: GFSK
• Data Rate: 2M bps
• Channel Spacing: 4MHz
• Frequency Stability: ±100KHz
• Working Channels: 10CH
• Transmission Distance: 100m (open area, 100mV transmission power)
• Transmission Power: 1-100mV (default 100mV)
• Receiving Sensitivity: -90dBm
• Input Level: Max 1.0Vpk
• Input Impedance: 10k Ω
• Stereo Output Level: 130mW RL=32Ω (Transmitter), 250mW RL=32Ω (Receiver)
• Output Impedance: 1k Ω
• Output-Input Gain Ratio: 1:01
• Frequency Response: 20-20000Hz
• Delay Time: <0.5ms
• Sampling Rate: 64KHz 16bit
• Signal-to-Noise Ratio: 95dB
• Distortion: 0.3% @1KHz
• Dynamic Range: 90dB
• Left-Right Channel Isolation: 85dB