VAORLO C41 Multi-Function Bluetooth Audio Adapter User Manual

Introduction

The VAORLO C41 Multi-Function Bluetooth Audio Adapter is a versatile device designed to enhance your audio experience by providing Digital-to-Analog Conversion (DAC), Bluetooth receiving, and Bluetooth transmitting capabilities. It allows you to connect various audio sources and output devices, making wired systems wireless and bridging different audio formats. This manual provides detailed instructions for setting up and operating your C41 adapter.

Package Contents

Please check the box for the following items:

• 1x C41 Wireless Audio Adapter
• 1x 3.5mm AUX Audio Cable
• 1x Optical Fiber Cable
• 1x Type-C Charging Cable
• 1x User Manual

Note: RCA and Coaxial audio cables are not included in the standard package and must be purchased separately if needed.

Device Overview

Familiarize yourself with the interfaces and controls of your C41 adapter:

1. RX/TX Mode key
2. DC5V Charging port
3. AUX Audio output interface
4. Optical input interface
5. Coaxial input interface
6. AUX audio input interface
7. Antenna
8. TF Card interface
9. Switch key
10. Switch button
11. Previous song/Next song
12. Display screen
13. OK key (Rotary knob)

Setup and Connection

Powering the Device

The C41 adapter does not have a built-in battery and requires external power. Connect the provided Type-C charging cable to the DC5V Charging port (2) on the adapter and plug the other end into a 5V/1A USB power source (e.g., USB wall adapter, computer USB port, power bank).

Connection Diagrams

The adapter supports various connection scenarios for both transmitting and receiving audio.

Operating Instructions

Basic Operations

• Power On/Off: Short press the power button (part of the rotary knob) for two seconds to turn on or off the device.
• Mode Switching (TX/RX): Use the RX/TX Mode key (1) on the side of the device to switch between Transmitter (TX) and Receiver (RX) modes. The display screen (12) will show the current mode.
• Volume Control: In RX mode, rotate the OK key (13) to the left to increase volume, and to the right to decrease volume.
• Music Play/Pause: Short press the mode button (part of the rotary knob) to play or pause music.
• Previous/Next Song: Short press the Previous song/Next song buttons (11) to navigate tracks.

TX Mode (Bluetooth Transmitter)

In TX mode, the adapter transmits audio from a wired source (e.g., TV, PC) to Bluetooth headphones or speakers.

1. Power On: Connect the adapter to a power supply. Short press the power button for two seconds. Set the side mode key to TX. The display will show "Searching...".
2. Connect to Audio Source: Use a 3.5mm audio cable (AUX input), coaxial cable, or optical cable (choose one) to connect the adapter to your audio source (e.g., TV, PC). Ensure you connect to the audio output port of your source device.
3. Pairing with Bluetooth Device:
   • Turn on your Bluetooth headphones or speakers and ensure they are in pairing mode.
   • The adapter will search for nearby Bluetooth devices.
   • Use the Previous/Next song buttons (11) to select the desired device on the display.
   • Click the mode button (part of the rotary knob) to confirm.
   • Once successfully paired, the display will show the Bluetooth device model. You can now play audio from your source device, and the sound will be transmitted to your Bluetooth headphones or speakers.
4. Switching Input Modes (TX): In TX mode, short press the Switch key (9) to cycle between Optical, AUX, and Coaxial input modes.
5. Reconnecting/Pairing Second Device: After initial pairing, double-click the power button to search for a second Bluetooth device. Use Previous/Next song to select, then press the mode button to confirm.

RX Mode (Bluetooth Receiver)

In RX mode, the adapter receives audio from a Bluetooth device (e.g., smartphone) and outputs it to a wired audio system (e.g., speakers, car stereo).

1. Power On: Connect the adapter to a power supply. Short press the power button for two seconds. Set the side mode key to RX. The display will show "RX".
2. Connect to Audio Output Device: Use a 3.5mm audio cable to connect the adapter's AUX Audio output interface (3) to your wired speaker, car stereo, or headphones.
3. Pairing with Smartphone:
   • Enable Bluetooth on your smartphone and search for "C41".
   • Select "C41" to pair.
   • Upon successful pairing, the display will show your phone's name. You can now play music from your smartphone, and the audio will be transmitted to your connected speakers.
   • The adapter will automatically reconnect to your phone the next time it's turned on if it was previously paired.
4. Switching Input Modes (RX): In RX mode, short press the Switch key (9) to toggle between Bluetooth mode and TF Card mode.

TF Card Playback

The C41 adapter supports TF card playback, allowing you to play music directly from a memory card.

1. Insert TF Card: Insert a TF card into the TF Card interface (8) on the adapter.
2. Select TF Card Mode: In RX mode, short press the Switch key (9) to switch to TF Card mode.
3. Playback Control: Use the Previous song/Next song buttons (11) to select songs.

Quick Connection Steps

1. First step: Connect the product to the device through the input/output interface, and select the transmission mode (TX) or the reception mode (RX) according to your needs.
2. Second step: When using the receive mode (RX): Turn on the mobile phone wireless, search for 'C41', and click connect. When using TX mode: Turn on the wireless headset/speaker to enter the pending pairing state. The product will automatically search and display nearby devices, but then manually select the equipment you need to connect to.
3. Third step: After the pairing is successful, you can enjoy your music journey.

Specifications

Care and Maintenance

• Keep the device dry. Moisture can damage the internal circuits.
• Do not expose the device to extreme temperatures.
• Clean the device with a soft, dry cloth. Do not use harsh chemicals or detergents.
• Avoid dropping or subjecting the device to strong impacts.
• The base of the adapter is equipped with a soft silicone pad for anti-slip and scratch resistance. Do not place on high temperature or oily equipment.

Troubleshooting

• If pairing fails: Turn off the adapter and the Bluetooth device (headphones/speakers/phone). Restart both devices and repeat the pairing steps. If using a phone, try turning off and on the phone's Bluetooth.
• No audio when connected to TV: Ensure the adapter is connected to the TV's audio output port, not an audio input port. Verify the correct input mode (Optical, Coaxial, or AUX) is selected on the adapter.
• Device does not automatically reconnect: While the device is designed to auto-reconnect to the last paired device, sometimes interference or device settings can prevent this. Try manually connecting from your phone's Bluetooth settings or re-initiating pairing on the adapter.
• Audio latency issues: While the device uses Bluetooth V5.3 for stable transmission, some latency can occur depending on the connected devices and environment. Ensure both the adapter and the connected Bluetooth device support low-latency codecs if available.

User Tips

• For optimal performance, ensure the adapter and connected Bluetooth devices are within the 10-meter working range without significant obstacles.
• When connecting to a TV, double-check that you are using an audio output port (e.g., 'Audio Out', 'Optical Out', 'Coaxial Out') and not an input port.
• If experiencing connection issues, try restarting both the adapter and the paired device.
• The rotary knob (OK key) is multi-functional: short press for play/pause/confirm, rotate for volume control.

Warranty and Support

For detailed warranty information and customer support, please refer to the official VAORLO website or contact your retailer. A comprehensive user manual in PDF format is also available for download: VAORLO C41 User Manual (PDF).