AU680 Audio Transmission Adapter Wireless Speaker Transmitter and Receiver Kit, with 2 Receivers, with 3 Receivers, with 4 Receivers, with 5 Receivers

1. Wireless Audio Transmission: This wireless audio transmitter and receiver kit helps send audio signals from your source device to speakers, amplifiers, TVs, projectors, and other audio equipment without long and messy cables.
2. Up to 100M Range: The wireless audio kit supports up to 100m transmission distance in open areas, making it suitable for home, office, shop, classroom, meeting room, and multi-room audio setups. Actual range may vary depending on walls and environment.
3. Through-Wall Signal Transmission: Designed with dual antennas for stable wireless transmission, this audio sender can help transmit signals across rooms, ideal for connecting devices between the living room, bedroom, office, or other indoor spaces.
4. Complete Transmitter and Receiver Set: The set includes one transmitter and one receiver. Connect the transmitter to your audio source device and the receiver to your speaker, amplifier, or other output device for a simple wireless audio connection.
5. One-to-Multiple Receiver Support: One transmitter can work with multiple receivers, allowing the same audio signal to be sent to different rooms or devices. Up to 10 pairs can be used in the same space, with frequency switching to help reduce interference.

Transmitter Parameters:
1. Operating Voltage: DC 3.6-5.5V
2. Operating Current: 250mA Max
3. Ambient Temperature: 0-85 degrees Celsius
4. Actual Operating Frequency Range: 590-630MHz
5. Modulation Method: Pi/4DQPSK
6. Frequency Selection Method: Provides one-way cyclic channel selection
7. Frequency Stability: +/-100KHz
8. Actual Operating Channels: 20CH
9. Channel Spacing: 1MHz
10. Transmit/Receive Distance: 100 meters (tested in open environment with a transmit power of 100mV)
11. Transmit Power: 1-100mV (default 100mV)
12. Three Input Interfaces: Stereo Audio Input, Standard Microphone Input, Monitor Pickup Input
13. Input/Output Gain Ratio: 1:01
14. Frequency Response Range: 20-20000Hz
15. Delay Time: 2.5ms
16. Sampling Rate: 48KHz 32bit
17. Signal-to-Noise Ratio: 96dB
18. Distortion: 0.3%, 1KHz
19. Dynamic Range: 90dB
20. Left and Right Channel Isolation: 85dB

Receiver Parameters:
1. Operating Voltage: DC 3.6-5.5V
2. Operating Current: 100mA Max
3. Ambient Temperature: 0-85 degrees Celsius
4. Actual Operating Frequency Range: 590-630MHz
5. Frequency Selection Method: Automatic Tracking Search
6. Frequency Stability: +/-100KHz
7. Actual Operating Channels: 20CH
8. Channel Spacing: 1MHz
9. Transmit/Receive Distance: 100 meters (Tested in open environment with a transmit power of 100mV)
10. Transmit Power: 1-100mV (default 100mV)
11. Receive Sensitivity: -95dBm
12. Output Impedance: 1K ohms
13. Input/Output Gain Ratio: 1:01
14. Frequency Response: 20-20000Hz
15. Delay Time: 2.5ms
16. Sampling Rate: 48kHz 32bit
17. Signal-to-Noise Ratio: 96dB
18. Distortion: 0.3%, 1kHz
19. Dynamic Range: 90dB
20. Left/Right Channel Isolation: 85dB