1. Introduction
The ESSAGER Bluetooth 5.3 Audio Receiver Transmitter is a versatile 2-in-1 device designed to enhance your audio experience. It functions as both a Bluetooth transmitter (TX mode) and a Bluetooth receiver (RX mode), allowing you to wirelessly connect various audio devices.
In TX mode, you can transmit audio from non-Bluetooth sources like TVs, computers, or in-flight entertainment systems to Bluetooth headphones, earbuds, or speakers via a 3.5mm AUX connection.
In RX mode, it enables your smartphone or other Bluetooth-enabled devices to stream audio to wired speakers or headphones, transforming them into wireless audio systems.
This device features CVC8.0 noise reduction and Digital Signal Processor (DSP) technology for clear call quality, a built-in microphone for hands-free communication, and supports navigation app voice notifications. Its flexible 3.5mm AUX plug is designed for convenience in tight spaces.
Image 1.1: The ESSAGER Bluetooth Receiver Transmitter, highlighting its dual functionality and compact design.
2. Safety Information
Please read and adhere to the following safety guidelines to ensure proper use and prevent damage to the device or injury.
- Battery Handling: Keep the device away from extreme temperatures and humidity. Do not expose the device to liquids.
- Potential Interference: This device may interfere with other wireless devices. Avoid using it near pacemakers or other medical devices.
- Disassembly: Do not attempt to disassemble, repair, or modify the device. This may void the warranty and pose safety risks.
- Disposal: Dispose of the device and its battery according to local regulations. Do not dispose of it in household waste.
3. Package Contents
Verify that all items are present in your package:
- ESSAGER Bluetooth 5.3 Audio Receiver Transmitter
- Integrated Flexible 3.5mm AUX Plug
- Type-C Charging Cable
- Airplane Audio Adapter
- User Manual
4. Product Overview
Familiarize yourself with the device's components:
Image 4.1: Front view of the ESSAGER Bluetooth Receiver Transmitter and the included airplane adapter.
- Flexible 3.5mm AUX Plug: Connects to audio input/output ports. Crafted from high-rebound TPU material for durability and flexibility in tight spaces.
- MFB Button (Multi-Function Button): Power On/Off, Play/Pause, Answer/End/Reject/Redial Calls.
- RX/TX Switch: Toggles between Receiver (RX) and Transmitter (TX) modes.
- LED Indicator: Displays device status (pairing, connected, charging).
- Built-in Microphone: For hands-free calling.
- Type-C Charging Port: For charging the device.
Image 4.2: The flexible 3.5mm AUX plug, designed for easy connection in various orientations.
5. Setup and Pairing
5.1 Charging the Device
Before first use, fully charge the device. Connect the included Type-C charging cable to the device's charging port and a USB power source (e.g., wall adapter, computer USB port). The LED indicator will show charging status and turn off when fully charged. A full charge takes approximately 1.5 hours.
5.2 Power On/Off
- Power On: Press and hold the MFB button for approximately 3 seconds until the LED indicator lights up.
- Power Off: Press and hold the MFB button for approximately 3 seconds until the LED indicator turns off.
5.3 Mode Selection (RX/TX)
Use the RX/TX switch on the side of the device to select the desired mode:
- RX (Receiver) Mode: For receiving audio from a Bluetooth source (e.g., smartphone) and outputting to a wired audio device (e.g., car stereo, wired headphones).
- TX (Transmitter) Mode: For transmitting audio from a non-Bluetooth source (e.g., TV, computer, airplane entertainment) to a Bluetooth audio device (e.g., Bluetooth headphones, speaker).
Image 5.1: Visual representation of TX and RX modes and their respective applications.
5.4 Pairing in RX (Receiver) Mode
- Switch the device to RX mode.
- Plug the flexible 3.5mm AUX plug into the audio input port of your wired speaker, car stereo, or wired headphones.
- Power on the ESSAGER device. It will automatically enter pairing mode, indicated by the LED flashing blue and red.
- On your smartphone or other Bluetooth-enabled device, go to Bluetooth settings and search for "ESSAGER" (or similar device name).
- Select "ESSAGER" to connect. Once paired, the LED indicator will turn solid blue.
5.5 Pairing in TX (Transmitter) Mode
- Switch the device to TX mode.
- Plug the flexible 3.5mm AUX plug into the audio output port of your non-Bluetooth source (e.g., TV, computer, MP3 player, airplane entertainment system). If using for airplane entertainment, use the included airplane audio adapter.
- Power on the ESSAGER device. It will automatically enter pairing mode, indicated by the LED flashing blue and red.
- Put your Bluetooth headphones or speaker into pairing mode (refer to their respective user manuals).
- The ESSAGER device will automatically search for and connect to nearby Bluetooth audio devices in pairing mode. Once paired, the LED indicator will turn solid blue.
6. Operating Instructions
6.1 Music Playback
- Play/Pause: Short press the MFB button.
6.2 Hands-Free Calling (RX Mode Only)
When in RX mode and connected to a smartphone, the built-in microphone allows for hands-free calls.
- Answer Call: Short press the MFB button when an incoming call rings.
- End Call: Short press the MFB button during a call.
- Reject Call: Press and hold the MFB button for approximately 2 seconds when an incoming call rings.
- Redial Last Number: Double-press the MFB button when not on a call.
Image 6.1: The device used for hands-free calling in a car, emphasizing safety.
6.3 Voice Notifications
In RX mode, the device supports broadcasting voice notifications from navigation applications on your connected smartphone, allowing you to hear directions clearly while driving.
Image 6.2: Various applications of the ESSAGER Bluetooth device, including airplane use, exercise, car audio, and home stereo.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Do not use liquid cleaners or aerosols.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid Impact: Do not drop or subject the device to strong impacts.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Low battery. | Charge the device fully using the provided Type-C cable. |
| Cannot pair with another device. | Incorrect mode selected (RX/TX). Device not in pairing mode. Too far from the other device. Previous pairing interference. | Ensure the correct RX or TX mode is selected. Power cycle the device to re-enter pairing mode (LED flashing blue/red). Bring devices closer (within 10 meters/33 feet). Clear Bluetooth history on the source/receiving device and try again. |
| Poor audio quality or intermittent connection. | Out of range. Interference from other wireless devices. Low battery. | Ensure devices are within 10 meters (33 feet) and without major obstructions. Move away from other Wi-Fi routers, microwaves, or strong electromagnetic fields. Charge the device. |
| Hands-free calling not working. | Not in RX mode. Microphone blocked. Not connected to a phone. | Ensure the device is in RX mode. Check that the microphone is not covered. Verify successful Bluetooth connection to your smartphone. |
9. Specifications
| Brand | ESSAGER |
| Model | B0DT6F83Z |
| Bluetooth Version | 5.3 |
| Operating Modes | Receiver (RX), Transmitter (TX) |
| Audio Port | 3.5mm AUX |
| Charging Port | Type-C |
| Battery Life | 6-7 hours (music/calls) |
| Charging Time | Approximately 1.5 hours |
| Transmission Distance | Up to 10 meters (33 feet) |
| Noise Reduction | CVC8.0, DSP |
| Dimensions | 96.69mm x 19.95mm (approx. 3.81 x 0.79 inches) |
| Item Weight | 1.76 ounces (approx. 0.05 kg) |
| Power Source | Battery Powered |
| Special Features | Low Latency, Noise Cancellation, Flexible 3.5mm AUX |
Image 9.1: Dimensions of the ESSAGER Bluetooth Receiver Transmitter.
10. Warranty and Support
ESSAGER products are designed for reliability and performance. For warranty information, technical support, or customer service inquiries, please refer to the contact information provided on the product packaging or the official ESSAGER website. Please retain your proof of purchase for warranty claims.
