eppfun 5824B 2.4G Wireless Audio Transmitter Receiver User Manual

1. Product Introduction

Thank you for choosing our eppfun 2.4G Wireless Audio Transmitter Receiver. This product is designed to provide high-definition sound quality with minimal delay, enhancing your audio experience. It utilizes 2.4G technology for reliable, delay-free transmission of 2.0 analog stereo audio signals (RCA and 3.5mm interfaces) over distances up to 50 meters (160 feet) to a receiver. This system eliminates the need for complex cable management and simplifies audio setup, making it ideal for home audio-visual systems, schools, electronic gaming, and other applications.

The system supports one transmitter and multiple receivers, offering flexibility for various audio setups. Please ensure you select the correct configuration (e.g., one transmitter + one receiver or one transmitter + two receivers) based on your needs.

2. Important Safety Notice

Notice:

• Please use the receiver and transmitter within a barrier-free distance of 50 meters (160 feet). Exceeding this range or encountering significant obstacles may result in sound pauses or signal loss.
• This product is an audio adapter that only transmits audio, not video.

3. Product Features

• Utilizes 2.4G technology for high-definition sound quality with no delay transmission.
• External antenna design for improved transmission efficiency and stability.
• Automatic connection upon power-on for ease of use.
• Supports RCA and 3.5mm port input on the transmitter.
• Supports RCA and 3.5mm port output on the receiver.
• Receiver can directly drive headphones.
• Supports two-way volume control via dedicated knobs on both units.
• Wide range power interface with Type-C power supply.
• Metal shell design for durability.
• Outdoor unobstructed transmission distance up to 50 meters (160 feet).

4. Product Specifications

5. Package Contents

The standard package includes:

• Receiver: 1 pc
• Transmitter: 1 pc
• User Manual: 1 pc
• USB Charge Power Cable: 2 pcs
• Power Adapter: 2 pcs

6. Interface Diagram

Receiver Interface:

1. Antenna: For wireless signal transmission and reception.
2. Pairing Key: Used for manual pairing if automatic connection fails.
3. Indicator Light:
   • Red: Light on when power is supplied.
   • Green: Flashes when not connected, stays on when connected.
4. Power Supply Port (Type-C): Connect to a power adapter using the provided USB cable.
5. Receiver Volume Adjustment Knob: Adjusts the output volume of the receiver.
6. 3.5mm Analog Audio Output Interface: Connects to headphones or an audio system.
7. RCA Analog Audio Output Interface (R-Out-L): Connects to an audio system.

Transmitter Interface:

8. Transmitter Volume Adjustment Knob: Adjusts the input volume of the transmitter.
9. AUX (3.5mm Analog Audio Input Interface): Connects to a signal source (e.g., computer, mobile phone, TV, EQ mixer).
10. RCA Analog Audio Input Interface (R-IN-L): Connects to a signal source (e.g., DVD, set-top box, EQ mixer).

7. Setup and Connection

For optimal performance, ensure the distance between the transmitter and receiver is approximately 1 meter during initial setup.

1. Connect the Transmitter to a Signal Source:
   Use a 3.5mm audio cable to connect the transmitter's AUX input to your audio source (e.g., computer, mobile phone, TV). Alternatively, use an RCA cable to connect the transmitter's R-IN-L input to sources like a DVD player or set-top box.
2. Power the Transmitter:
   Connect one of the provided USB charge power cables to the transmitter's Type-C power supply port and plug the other end into a power adapter (included) or a compatible USB power source.
3. Connect the Receiver to an Audio System:
   Use a 3.5mm audio cable to connect the receiver's 3.5mm output to your sound system or headphones. Alternatively, use an RCA cable to connect the receiver's R-Out-L output to your sound system (e.g., subwoofer, active speaker, soundbar, amplifier).
4. Power the Receiver:
   Connect the second USB charge power cable to the receiver's Type-C power supply port and plug the other end into a power adapter (included) or a compatible USB power source.
5. Adjust Volume:
   Once connected and powered on, adjust the desired volume using the volume control knobs on both the transmitter and receiver units.

8. Pairing Methods

This product is pre-paired at the factory and should automatically connect when powered on within the effective distance (50 meters without obstacles). If re-pairing is necessary, follow these steps:

1. Transmitter Pairing:
   Connect the transmitter to its power supply. Press and hold the pairing key on the transmitter for 2 seconds. The Link indicator light will flash rapidly, indicating it has entered pairing mode.
2. Receiver Pairing:
   Connect the receiver to its power supply. Press and hold the pairing key on the receiver for 2 seconds. The Link indicator light will flash rapidly, indicating it has entered pairing mode.
3. Connection Confirmation:
   Once both units are in pairing mode, they will attempt to connect. The Link indicator light on both the transmitter and receiver will become solid (long on) once a successful connection is established.

9. Operation

After successful setup and pairing, the eppfun 2.4G Wireless Audio Transmitter Receiver operates as a plug-and-play device. Simply ensure both units are powered on and connected to their respective audio devices. The audio signal from your source connected to the transmitter will be wirelessly sent to the receiver and output through the connected audio system or headphones.

• Volume Control: Use the dedicated volume control knobs on both the transmitter and receiver to adjust the audio level to your preference.
• Range: Maintain a clear line of sight between the transmitter and receiver for the best performance and to achieve the maximum 50-meter range.

10. Troubleshooting

If you encounter issues with your eppfun wireless audio system, please refer to the following common solutions:

• No Sound Output:
  • Ensure both the transmitter and receiver are powered on and their indicator lights show a successful connection (solid green).
  • Check all audio cables (3.5mm, RCA) are securely connected to both the source and output devices.
  • Verify the volume levels on both the transmitter and receiver, as well as on your audio source and output device.
  • Confirm that the correct input/output is selected on your audio source and output device.
• Sound Pauses or Intermittent Audio:
  • Ensure the transmitter and receiver are within the 50-meter barrier-free range.
  • Reduce obstacles between the units.
  • Minimize interference from other 2.4GHz devices (e.g., Wi-Fi routers, cordless phones). Try moving the units away from such devices.
  • Check if the units require re-pairing (refer to Section 8).
• Units Not Pairing Automatically:
  • Follow the manual pairing steps outlined in Section 8.
  • Ensure both units are powered on and within close proximity (approx. 1 meter) during the pairing process.
• Poor Sound Quality:
  • Ensure all connections are secure.
  • Check for sources of electromagnetic interference.
  • Verify that the audio source is providing a clean signal.

If problems persist, please consult the full user manual PDF for more detailed troubleshooting or contact customer support.

11. User Tips

• Configuration Check: When purchasing, double-check your order to ensure you have the correct number of transmitters and receivers for your setup. For example, if you intend to connect to two separate speaker systems, ensure you have one transmitter and two receivers (1TX2RX option).
• Optimal Placement: For the best wireless performance, place the transmitter and receiver in locations with minimal obstructions and away from other wireless devices that operate on the 2.4GHz frequency band.
• Volume Balance: Utilize both the transmitter and receiver volume controls to achieve a balanced audio level without distortion. Start with moderate volume on both units and adjust gradually.

12. Warranty and Support

eppfun products are manufactured to high-quality standards. For information regarding warranty coverage, technical support, or service, please refer to the official eppfun website or the documentation provided with your purchase. Keep your proof of purchase for any warranty claims.

A comprehensive user manual is available in PDF format for download. You can access it via the following link: Download User Manual (PDF)